Number

1,544

1,544 is a composite number, even, a calendar year.

Deficient Number Odious Number Pernicious Number Recamán's Sequence Year

Notable events — 1544 AD

Sep 14 Henry VIII captures Boulogne.
Sep 18 Francis I and Charles V sign the Peace of Crépy.
Undated Spanish silver from Potosí begins flowing to Europe (mining starts 1545).

Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0

Year facts

Year type: Leap year
Divisible by 4 and not by 100; February has 29 days.
Days in year: 366
ISO weeks: 52
Started on: Saturday
January 1, 1544
Ended on: Sunday
December 31, 1544
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 1540s
1540–1549
Century: 16th century
1501–1600
Millennium: 2nd millennium
1001–2000
Years ago: 482
482 years before 2026.

In other calendars

Hebrew: 5304 / 5305 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 950 / 951 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Wood zodiac:Dragon
Sexagenary cycle position 41 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 2087 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 922 / 923 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 1536 / 1537 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 1466 / 1465 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 4
Digit sum: 14
Digit product: 80
Digital root: 5
Palindrome: No
Bit width: 11 bits
Reversed: 4,451
Recamán's sequence: a(1,472) = 1,544
Square (n²): 2,383,936
Cube (n³): 3,680,797,184
Divisor count: 8
σ(n) — sum of divisors: 2,910
φ(n) — Euler's totient: 768
Sum of prime factors: 199

Primality

Prime factorization: 2 ³ × 193

Nearest primes: 1,543 (−1) · 1,549 (+5)

Divisors & multiples

All divisors (8)

1 · 2 · 4 · 8 · 193 · 386 · 772 (half) · 1544

Aliquot sum (sum of proper divisors): 1,366

Factor pairs (a × b = 1,544)

1 × 1544

2 × 772

4 × 386

8 × 193

First multiples

1,544 · 3,088 (double) · 4,632 · 6,176 · 7,720 · 9,264 · 10,808 · 12,352 · 13,896 · 15,440

Sums & aliquot sequence

As a sum of two squares: 10² + 38²

As consecutive integers: 89 + 90 + … + 104

Aliquot sequence: 1,544 → 1,366 → 686 → 514 → 260 → 328 → 302 → 154 → 134 → 70 → 74 → 40 → 50 → 43 → 1 → 0 — terminates at zero

Representations

In words: one thousand five hundred forty-four
Ordinal: 1544th
Roman numeral: MDXLIV
Binary: 11000001000
Octal: 3010
Hexadecimal: 0x608
Base64: Bgg=
One's complement: 63,991 (16-bit)

In other bases

ternary (3) 2010012

quaternary (4) 120020

quinary (5) 22134

senary (6) 11052

septenary (7) 4334

nonary (9) 2105

undecimal (11) 1184

duodecimal (12) a88

tridecimal (13) 91a

tetradecimal (14) 7c4

pentadecimal (15) 6ce

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian): ͵αφμδʹ
Mayan (base 20): 𝋣·𝋱·𝋤
Chinese: 一千五百四十四
Chinese (financial): 壹仟伍佰肆拾肆

In other modern scripts

Eastern Arabic ١٥٤٤ Devanagari १५४४ Bengali ১৫৪৪ Tamil ௧௫௪௪ Thai ๑๕๔๔ Tibetan ༡༥༤༤ Khmer ១៥៤៤ Lao ໑໕໔໔ Burmese ၁၅၄၄

Digit at this position in famous constants

π — Pi (π): Digit 1,544 = 7
e — Euler's number (e): Digit 1,544 = 3
φ — Golden ratio (φ): Digit 1,544 = 6
√2 — Pythagoras's (√2): Digit 1,544 = 7
ln 2 — Natural log of 2: Digit 1,544 = 0
γ — Euler-Mascheroni (γ): Digit 1,544 = 1

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1544, here are decompositions:

13 + 1531 = 1544
61 + 1483 = 1544
73 + 1471 = 1544
97 + 1447 = 1544
163 + 1381 = 1544
223 + 1321 = 1544
241 + 1303 = 1544
307 + 1237 = 1544

Showing the first eight; more decompositions exist.

Unicode codepoint

Arabic Ray

U+0608

Math symbol (Sm)

UTF-8 encoding: D8 88 (2 bytes).

Lookup U+0608 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000608

RGB(0, 6, 8)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.8.

Address: 0.0.6.8
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.6.8

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

Position in π

The digit sequence 1544 first appears in π at position 3,959 of the decimal expansion (the 3,959ordinal-suffix:th 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 1544 on Pi Search ↗