Number

1,424

1,424 is a composite number, even, a calendar year.

Arithmetic Number Deficient Number Evil Number Recamán's Sequence Year

Historical context — 1424 AD

Calendar year

Year 1424 (MCDXXIV) was a leap year starting on Saturday of the Julian calendar.

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

Year facts

Year type: Leap year
Divisible by 4 and not by 100; February has 29 days.
Days in year: 366
ISO weeks: 53
Long year: contains 53 ISO weeks.
Started on: Thursday
January 1, 1424
Ended on: Friday
December 31, 1424
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 1420s
1420–1429
Century: 15th century
1401–1500
Millennium: 2nd millennium
1001–2000
Years ago: 602
602 years before 2026.

In other calendars

Hebrew: 5184 / 5185 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 827 / 828 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: 1967 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 802 / 803 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 1416 / 1417 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 1346 / 1345 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 4
Digit sum: 11
Digit product: 32
Digital root: 2
Palindrome: No
Bit width: 11 bits
Reversed: 4,241
Recamán's sequence: a(1,712) = 1,424
Square (n²): 2,027,776
Cube (n³): 2,887,553,024
Divisor count: 10
σ(n) — sum of divisors: 2,790
φ(n) — Euler's totient: 704
Sum of prime factors: 97

Primality

Prime factorization: 2 ⁴ × 89

Nearest primes: 1,423 (−1) · 1,427 (+3)

Divisors & multiples

All divisors (10)

1 · 2 · 4 · 8 · 16 · 89 · 178 · 356 · 712 (half) · 1424

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

Factor pairs (a × b = 1,424)

1 × 1424

2 × 712

4 × 356

8 × 178

16 × 89

First multiples

1,424 · 2,848 (double) · 4,272 · 5,696 · 7,120 · 8,544 · 9,968 · 11,392 · 12,816 · 14,240

Sums & aliquot sequence

As a sum of two squares: 20² + 32²

As consecutive integers: 29 + 30 + … + 60

Aliquot sequence: 1,424 → 1,366 → 686 → 514 → 260 → 328 → 302 → 154 → 134 → 70 → 74 → 40 → 50 → 43 → 1 → 0 — terminates at zero

Representations

In words: one thousand four hundred twenty-four
Ordinal: 1424th
Roman numeral: MCDXXIV
Binary: 10110010000
Octal: 2620
Hexadecimal: 0x590
Base64: BZA=
One's complement: 64,111 (16-bit)

In other bases

ternary (3) 1221202

quaternary (4) 112100

quinary (5) 21144

senary (6) 10332

septenary (7) 4103

nonary (9) 1852

undecimal (11) 1085

duodecimal (12) 9a8

tridecimal (13) 857

tetradecimal (14) 73a

pentadecimal (15) 64e

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian): ͵αυκδʹ
Mayan (base 20): 𝋣·𝋫·𝋤
Chinese: 一千四百二十四
Chinese (financial): 壹仟肆佰貳拾肆

In other modern scripts

Eastern Arabic ١٤٢٤ Devanagari १४२४ Bengali ১৪২৪ Tamil ௧௪௨௪ Thai ๑๔๒๔ Tibetan ༡༤༢༤ Khmer ១៤២៤ Lao ໑໔໒໔ Burmese ၁၄၂၄

Digit at this position in famous constants

π — Pi (π): Digit 1,424 = 6
e — Euler's number (e): Digit 1,424 = 8
φ — Golden ratio (φ): Digit 1,424 = 0
√2 — Pythagoras's (√2): Digit 1,424 = 8
ln 2 — Natural log of 2: Digit 1,424 = 9
γ — Euler-Mascheroni (γ): Digit 1,424 = 7

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1424, here are decompositions:

43 + 1381 = 1424
97 + 1327 = 1424
103 + 1321 = 1424
127 + 1297 = 1424
193 + 1231 = 1424
211 + 1213 = 1424
223 + 1201 = 1424
271 + 1153 = 1424

Showing the first eight; more decompositions exist.

Hex color

#000590

RGB(0, 5, 144)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.144.

Address: 0.0.5.144
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.5.144

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

Position in π

The digit sequence 1424 first appears in π at position 7,188 of the decimal expansion (the 7,188ordinal-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 1424 on Pi Search ↗