Number

1,372

1,372 is a composite number, even, a calendar year.

Abundant Number Achilles Number Evil Number Powerful Number Practical Number Recamán's Sequence Semiperfect Number Year

Historical context — 1372 AD

Calendar year

Year 1372 (MCCCLXXII) was a leap year starting on Thursday 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: Wednesday
January 1, 1372
Ended on: Thursday
December 31, 1372
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 1370s
1370–1379
Century: 14th century
1301–1400
Millennium: 2nd millennium
1001–2000
Years ago: 654
654 years before 2026.

In other calendars

Hebrew: 5132 / 5133 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 773 / 774 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Water zodiac:Rat
Sexagenary cycle position 49 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1915 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 750 / 751 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 1364 / 1365 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 1294 / 1293 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 4
Digit sum: 13
Digit product: 42
Digital root: 4
Palindrome: No
Bit width: 11 bits
Reversed: 2,731
Recamán's sequence: a(8,384) = 1,372
Square (n²): 1,882,384
Cube (n³): 2,582,630,848
Divisor count: 12
σ(n) — sum of divisors: 2,800
φ(n) — Euler's totient: 588
Sum of prime factors: 25

Primality

Prime factorization: 2 ² × 7 ³

Nearest primes: 1,367 (−5) · 1,373 (+1)

Divisors & multiples

All divisors (12)

1 · 2 · 4 · 7 · 14 · 28 · 49 · 98 · 196 · 343 · 686 (half) · 1372

Aliquot sum (sum of proper divisors): 1,428

Factor pairs (a × b = 1,372)

1 × 1372

2 × 686

4 × 343

7 × 196

14 × 98

28 × 49

First multiples

1,372 · 2,744 (double) · 4,116 · 5,488 · 6,860 · 8,232 · 9,604 · 10,976 · 12,348 · 13,720

Sums & aliquot sequence

As consecutive integers: 193 + 194 + … + 199 168 + 169 + … + 175 4 + 5 + … + 52

Aliquot sequence: 1,372 → 1,428 → 2,604 → 4,564 → 4,620 → 11,508 → 19,404 → 42,840 → 125,640 → 283,860 → 633,420 → 1,562,004 → 2,535,180 → 5,206,260 → 9,371,436 → 12,495,276 → 20,190,804 — unresolved within range

Representations

In words: one thousand three hundred seventy-two
Ordinal: 1372nd
Roman numeral: MCCCLXXII
Binary: 10101011100
Octal: 2534
Hexadecimal: 0x55C
Base64: BVw=
One's complement: 64,163 (16-bit)

In other bases

ternary (3) 1212211

quaternary (4) 111130

quinary (5) 20442

senary (6) 10204

septenary (7) 4000

nonary (9) 1784

undecimal (11) 1038

duodecimal (12) 964

tridecimal (13) 817

tetradecimal (14) 700

pentadecimal (15) 617

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic: 𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian): ͵ατοβʹ
Mayan (base 20): 𝋣·𝋨·𝋬
Chinese: 一千三百七十二
Chinese (financial): 壹仟參佰柒拾貳

In other modern scripts

Eastern Arabic ١٣٧٢ Devanagari १३७२ Bengali ১৩৭২ Tamil ௧௩௭௨ Thai ๑๓๗๒ Tibetan ༡༣༧༢ Khmer ១៣៧២ Lao ໑໓໗໒ Burmese ၁၃၇၂

Digit at this position in famous constants

π — Pi (π): Digit 1,372 = 7
e — Euler's number (e): Digit 1,372 = 1
φ — Golden ratio (φ): Digit 1,372 = 1
√2 — Pythagoras's (√2): Digit 1,372 = 3
ln 2 — Natural log of 2: Digit 1,372 = 5
γ — Euler-Mascheroni (γ): Digit 1,372 = 6

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1372, here are decompositions:

5 + 1367 = 1372
11 + 1361 = 1372
53 + 1319 = 1372
71 + 1301 = 1372
83 + 1289 = 1372
89 + 1283 = 1372
113 + 1259 = 1372
149 + 1223 = 1372

Showing the first eight; more decompositions exist.

Unicode codepoint

Armenian Exclamation Mark

U+055C

Other punctuation (Po)

UTF-8 encoding: D5 9C (2 bytes).

Lookup U+055C on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00055C

RGB(0, 5, 92)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.92.

Address: 0.0.5.92
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.5.92

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

Position in π

The digit sequence 1372 first appears in π at position 16,973 of the decimal expansion (the 16,973ordinal-suffix:rd 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 1372 on Pi Search ↗