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13,130

13,130 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.).
Deficient Number Gapful Number Odious Number Pernicious Number Recamán's Sequence Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
8
Digit product
0
Digital root
8
Palindrome
No
Bit width
14 bits
Reversed
3,131
Recamán's sequence
a(48,015) = 13,130
Square (n²)
172,396,900
Cube (n³)
2,263,571,297,000
Divisor count
16
σ(n) — sum of divisors
25,704
φ(n) — Euler's totient
4,800
Sum of prime factors
121

Primality

Prime factorization: 2 × 5 × 13 × 101

Nearest primes: 13,127 (−3) · 13,147 (+17)

Divisors & multiples

All divisors (16)
1 · 2 · 5 · 10 · 13 · 26 · 65 · 101 · 130 · 202 · 505 · 1010 · 1313 · 2626 · 6565 (half) · 13130
Aliquot sum (sum of proper divisors): 12,574
Factor pairs (a × b = 13,130)
1 × 13130
2 × 6565
5 × 2626
10 × 1313
13 × 1010
26 × 505
65 × 202
101 × 130
First multiples
13,130 · 26,260 (double) · 39,390 · 52,520 · 65,650 · 78,780 · 91,910 · 105,040 · 118,170 · 131,300

Sums & aliquot sequence

As a sum of two squares: 19² + 113² = 41² + 107² = 61² + 97² = 79² + 83²
As consecutive integers: 3,281 + 3,282 + 3,283 + 3,284 2,624 + 2,625 + 2,626 + 2,627 + 2,628 1,004 + 1,005 + … + 1,016 647 + 648 + … + 666
Aliquot sequence: 13,130 12,574 6,290 6,022 3,014 1,954 980 1,414 1,034 694 350 394 200 265 59 1 0 — terminates at zero

Representations

In words
thirteen thousand one hundred thirty
Ordinal
13130th
Binary
11001101001010
Octal
31512
Hexadecimal
0x334A
Base64
M0o=
One's complement
52,405 (16-bit)
In other bases
ternary (3) 200000022
quaternary (4) 3031022
quinary (5) 410010
senary (6) 140442
septenary (7) 53165
nonary (9) 20008
undecimal (11) 9957
duodecimal (12) 7722
tridecimal (13) 5c90
tetradecimal (14) 4adc
pentadecimal (15) 3d55

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓎆𓎆𓎆
Greek (Milesian)
͵ιγρλʹ
Mayan (base 20)
𝋡·𝋬·𝋰·𝋪
Chinese
一萬三千一百三十
Chinese (financial)
壹萬參仟壹佰參拾
In other modern scripts
Eastern Arabic ١٣١٣٠ Devanagari १३१३० Bengali ১৩১৩০ Tamil ௧௩௧௩௦ Thai ๑๓๑๓๐ Tibetan ༡༣༡༣༠ Khmer ១៣១៣០ Lao ໑໓໑໓໐ Burmese ၁၃၁၃၀

Digit at this position in famous constants

π — Pi (π)
Digit 13,130 = 5
e — Euler's number (e)
Digit 13,130 = 0
φ — Golden ratio (φ)
Digit 13,130 = 7
√2 — Pythagoras's (√2)
Digit 13,130 = 0
ln 2 — Natural log of 2
Digit 13,130 = 0
γ — Euler-Mascheroni (γ)
Digit 13,130 = 3

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13130, here are decompositions:

  • 3 + 13127 = 13130
  • 31 + 13099 = 13130
  • 37 + 13093 = 13130
  • 67 + 13063 = 13130
  • 97 + 13033 = 13130
  • 127 + 13003 = 13130
  • 151 + 12979 = 13130
  • 157 + 12973 = 13130

Showing the first eight; more decompositions exist.

Unicode codepoint
Square Miribaaru
U+334A
Other symbol (So)

UTF-8 encoding: E3 8D 8A (3 bytes).

Hex color
#00334A
RGB(0, 51, 74)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.51.74.

Address
0.0.51.74
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.51.74

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

Position in π

The digit sequence 13130 first appears in π at position 76,710 of the decimal expansion (the 76,710ordinal-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.