Number

1,446

1,446 is a composite number, even, a calendar year.

1,446 (one thousand four hundred forty-six) is an even 4-digit number. It is a composite number with 8 divisors, and factors as 2 × 3 × 241. Its proper divisors sum to 1,458, more than the number itself, making it an abundant number. Written other ways, in Roman numerals it is MCDXLVI and in binary, 10110100110.

Abundant Number Arithmetic Number Cube-Free Evil Number Recamán's Sequence Semiperfect Number Sphenic Number Squarefree Year

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

1,434 1,435 1,436 1,437 1,438 1,439 1,440 1,441 1,442 1,443 1,444 1,445 1,446 1,447 1,448 1,449 1,450 1,451 1,452 1,453 1,454 1,455 1,456 1,457 1,458

less more

Historical context — 1446 AD

Calendar year

Year 1446 (MCDXLVI) was a common year starting on Saturday of the Julian calendar.

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 Read the full article on Wikipedia →

Year facts

Year type: Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
Days in year: 365
ISO weeks: 53
Long year: contains 53 ISO weeks.
Started on: Thursday
January 1, 1446
Ended on: Thursday
December 31, 1446
Friday the 13ths: 3
3 Friday the 13ths this year.
Decade: 1440s
1440–1449
Century: 15th century
1401–1500
Millennium: 2nd millennium
1001–2000
Years ago: 580
580 years before 2026.

In other calendars

Hebrew: 5206 / 5207 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 849 / 850 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Fire zodiac:Tiger
Sexagenary cycle position 3 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1989 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 824 / 825 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 1438 / 1439 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 1368 / 1367 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 4
Digit sum: 15
Digit product: 96
Digital root: 6
Palindrome: No
Bit width: 11 bits
Reversed: 6,441
Recamán's sequence: a(1,668) = 1,446
Square (n²): 2,090,916
Cube (n³): 3,023,464,536
Divisor count: 8
σ(n) — sum of divisors: 2,904
φ(n) — Euler's totient: 480
Sum of prime factors: 246

Primality

Prime factorization: 2 × 3 × 241

Nearest primes: 1,439 (−7) · 1,447 (+1)

Divisors & multiples

All divisors (8)

1 · 2 · 3 · 6 · 241 · 482 · 723 (half) · 1446

Aliquot sum (sum of proper divisors): 1,458

Factor pairs (a × b = 1,446)

1 × 1446

2 × 723

3 × 482

6 × 241

First multiples

1,446 · 2,892 (double) · 4,338 · 5,784 · 7,230 · 8,676 · 10,122 · 11,568 · 13,014 · 14,460

Sums & aliquot sequence

As consecutive integers: 481 + 482 + 483 360 + 361 + 362 + 363 115 + 116 + … + 126

Aliquot sequence: 1,446 → 1,458 → 1,821 → 611 → 61 → 1 → 0 — terminates at zero

Continued fraction of √n

√1,446 = [38; (38, 76)]

Period length 2 — the block in parentheses repeats forever.

Representations

In words: one thousand four hundred forty-six
Ordinal: 1446th
Roman numeral: MCDXLVI
Binary: 10110100110
Octal: 2646
Hexadecimal: 0x5A6
Base64: BaY=
One's complement: 64,089 (16-bit)
Scientific notation: 1.446 × 10³
As a duration: 1,446 s = 24 minutes, 6 seconds

In other bases

ternary (3) 1222120

quaternary (4) 112212

quinary (5) 21241

senary (6) 10410

septenary (7) 4134

nonary (9) 1876

undecimal (11) 10a5

duodecimal (12) a06

tridecimal (13) 873

tetradecimal (14) 754

pentadecimal (15) 666

Palindromic in base 15

As an angle

1,446° = 4 × 360° + 6°

6° ≈ 0.105 rad

Compass bearing: N (north)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵αυμϛʹ
Mayan (base 20): 𝋣·𝋬·𝋦
Chinese: 一千四百四十六
Chinese (financial): 壹仟肆佰肆拾陸

In other modern scripts

Eastern Arabic ١٤٤٦ Devanagari १४४६ Bengali ১৪৪৬ Tamil ௧௪௪௬ Thai ๑๔๔๖ Tibetan ༡༤༤༦ Khmer ១៤៤៦ Lao ໑໔໔໖ Burmese ၁၄၄၆

Digit at this position in famous constants

π — Pi (π): Digit 1,446 = 8
e — Euler's number (e): Digit 1,446 = 9
φ — Golden ratio (φ): Digit 1,446 = 0
√2 — Pythagoras's (√2): Digit 1,446 = 4
ln 2 — Natural log of 2: Digit 1,446 = 2
γ — Euler-Mascheroni (γ): Digit 1,446 = 0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1446, here are decompositions:

7 + 1439 = 1446
13 + 1433 = 1446
17 + 1429 = 1446
19 + 1427 = 1446
23 + 1423 = 1446
37 + 1409 = 1446
47 + 1399 = 1446
73 + 1373 = 1446

Showing the first eight; more decompositions exist.

Unicode codepoint

Hebrew Accent Merkha Kefula

U+05A6

Non-spacing mark (Mn)

UTF-8 encoding: D6 A6 (2 bytes).

Lookup U+05A6 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0005A6

RGB(0, 5, 166)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.166.

Address: 0.0.5.166
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.5.166

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Musical pitch

Heard as a frequency, 1,446 Hz is closest to:

Concert pitch (A4 = 440 Hz): F♯6 (1480 Hz, -40¢)
Scientific pitch (C4 = 256 Hz): F♯6 (1448.2 Hz, -3¢)
Baroque pitch (A4 = 415 Hz): G6 (1478.9 Hz, -39¢)

Position in π

The digit sequence 1446 first appears in π at position 9,242 of the decimal expansion (the 9,242ordinal-suffix:nd digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Look up 1446 on Pi Search ↗