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13,318

13,318 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Arithmetic Number Deficient Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
16
Digit product
72
Digital root
7
Palindrome
No
Bit width
14 bits
Reversed
81,331
Recamán's sequence
a(47,639) = 13,318
Square (n²)
177,369,124
Cube (n³)
2,362,201,993,432
Divisor count
4
σ(n) — sum of divisors
19,980
φ(n) — Euler's totient
6,658
Sum of prime factors
6,661

Primality

Prime factorization: 2 × 6659

Nearest primes: 13,313 (−5) · 13,327 (+9)

Divisors & multiples

All divisors (4)
1 · 2 · 6659 (half) · 13318
Aliquot sum (sum of proper divisors): 6,662
Factor pairs (a × b = 13,318)
1 × 13318
2 × 6659
First multiples
13,318 · 26,636 (double) · 39,954 · 53,272 · 66,590 · 79,908 · 93,226 · 106,544 · 119,862 · 133,180

Sums & aliquot sequence

As consecutive integers: 3,328 + 3,329 + 3,330 + 3,331
Aliquot sequence: 13,318 6,662 3,334 1,670 1,354 680 940 1,076 814 554 280 440 640 890 730 602 454 — unresolved within range

Representations

In words
thirteen thousand three hundred eighteen
Ordinal
13318th
Binary
11010000000110
Octal
32006
Hexadecimal
0x3406
Base64
NAY=
One's complement
52,217 (16-bit)
In other bases
ternary (3) 200021021
quaternary (4) 3100012
quinary (5) 411233
senary (6) 141354
septenary (7) 53554
nonary (9) 20237
undecimal (11) a008
duodecimal (12) 785a
tridecimal (13) 60a6
tetradecimal (14) 4bd4
pentadecimal (15) 3e2d

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ιγτιηʹ
Mayan (base 20)
𝋡·𝋭·𝋥·𝋲
Chinese
一萬三千三百一十八
Chinese (financial)
壹萬參仟參佰壹拾捌
In other modern scripts
Eastern Arabic ١٣٣١٨ Devanagari १३३१८ Bengali ১৩৩১৮ Tamil ௧௩௩௧௮ Thai ๑๓๓๑๘ Tibetan ༡༣༣༡༨ Khmer ១៣៣១៨ Lao ໑໓໓໑໘ Burmese ၁၃၃၁၈

Digit at this position in famous constants

π — Pi (π)
Digit 13,318 = 7
e — Euler's number (e)
Digit 13,318 = 9
φ — Golden ratio (φ)
Digit 13,318 = 2
√2 — Pythagoras's (√2)
Digit 13,318 = 2
ln 2 — Natural log of 2
Digit 13,318 = 0
γ — Euler-Mascheroni (γ)
Digit 13,318 = 5

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13318, here are decompositions:

  • 5 + 13313 = 13318
  • 59 + 13259 = 13318
  • 89 + 13229 = 13318
  • 101 + 13217 = 13318
  • 131 + 13187 = 13318
  • 167 + 13151 = 13318
  • 191 + 13127 = 13318
  • 197 + 13121 = 13318

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-3406
U+3406
Other letter (Lo)

UTF-8 encoding: E3 90 86 (3 bytes).

Hex color
#003406
RGB(0, 52, 6)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.52.6.

Address
0.0.52.6
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.52.6

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

Position in π

The digit sequence 13318 first appears in π at position 26,754 of the decimal expansion (the 26,754ordinal-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.