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131,360

131,360 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.).

131,360 (one hundred thirty-one thousand three hundred sixty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2⁵ × 5 × 821. Its proper divisors sum to 179,356, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20120.

Abundant Number Gapful Number Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
14
Digit product
0
Digital root
5
Palindrome
No
Bit width
18 bits
Reversed
63,131
Square (n²)
17,255,449,600
Cube (n³)
2,266,675,859,456,000
Divisor count
24
σ(n) — sum of divisors
310,716
φ(n) — Euler's totient
52,480
Sum of prime factors
836

Primality

Prime factorization: 2 5 × 5 × 821

Nearest primes: 131,357 (−3) · 131,363 (+3)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 32 · 40 · 80 · 160 · 821 · 1642 · 3284 · 4105 · 6568 · 8210 · 13136 · 16420 · 26272 · 32840 · 65680 (half) · 131360
Aliquot sum (sum of proper divisors): 179,356
Factor pairs (a × b = 131,360)
1 × 131360
2 × 65680
4 × 32840
5 × 26272
8 × 16420
10 × 13136
16 × 8210
20 × 6568
32 × 4105
40 × 3284
80 × 1642
160 × 821
First multiples
131,360 · 262,720 (double) · 394,080 · 525,440 · 656,800 · 788,160 · 919,520 · 1,050,880 · 1,182,240 · 1,313,600

Sums & aliquot sequence

As a sum of two squares: 68² + 356² = 244² + 268²
As consecutive integers: 26,270 + 26,271 + 26,272 + 26,273 + 26,274 2,021 + 2,022 + … + 2,084 251 + 252 + … + 570
Aliquot sequence: 131,360 179,356 134,524 121,676 102,604 79,340 87,316 67,916 50,944 51,256 47,744 47,626 23,816 24,484 18,370 17,918 11,554 — unresolved within range

Continued fraction of √n

√131,360 = [362; (2, 3, 2, 2, 1, 1, 3, 17, 2, 2, 44, 1, 9, 4, 3, 7, 1, 5, 9, 181, 9, 5, 1, 7, …)]

Period length 40 — the block in parentheses repeats forever.

Representations

In words
one hundred thirty-one thousand three hundred sixty
Ordinal
131360th
Binary
100000000100100000
Octal
400440
Hexadecimal
0x20120
Base64
AgEg
One's complement
4,294,835,935 (32-bit)
Scientific notation
1.3136 × 10⁵
As a duration
131,360 s = 1 day, 12 hours, 29 minutes, 20 seconds
In other bases
ternary (3) 20200012012
quaternary (4) 200010200
quinary (5) 13200420
senary (6) 2452052
septenary (7) 1054655
nonary (9) 220165
undecimal (11) 8a769
duodecimal (12) 64028
tridecimal (13) 47a38
tetradecimal (14) 35c2c
pentadecimal (15) 28dc5

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ρλατξʹ
Mayan (base 20)
𝋰·𝋨·𝋨·𝋠
Chinese
一十三萬一千三百六十
Chinese (financial)
壹拾參萬壹仟參佰陸拾
In other modern scripts
Eastern Arabic ١٣١٣٦٠ Devanagari १३१३६० Bengali ১৩১৩৬০ Tamil ௧௩௧௩௬௦ Thai ๑๓๑๓๖๐ Tibetan ༡༣༡༣༦༠ Khmer ១៣១៣៦០ Lao ໑໓໑໓໖໐ Burmese ၁၃၁၃၆၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131360, here are decompositions:

  • 3 + 131357 = 131360
  • 43 + 131317 = 131360
  • 67 + 131293 = 131360
  • 109 + 131251 = 131360
  • 139 + 131221 = 131360
  • 157 + 131203 = 131360
  • 211 + 131149 = 131360
  • 337 + 131023 = 131360

Showing the first eight; more decompositions exist.

Unicode codepoint
𠄠
CJK Unified Ideograph-20120
U+20120
Other letter (Lo)

UTF-8 encoding: F0 A0 84 A0 (4 bytes).

Hex color
#020120
RGB(2, 1, 32)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.32.

Address
0.2.1.32
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.1.32

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

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 131,360 and was likely granted around 1872.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Position in π

The digit sequence 131360 first appears in π at position 168,687 of the decimal expansion (the 168,687ordinal-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.

Related reading

  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.