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131,369

131,369 is a composite number, odd.

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.).

131,369 (one hundred thirty-one thousand three hundred sixty-nine) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 7³ × 383. Written other ways, in hexadecimal, 0x20129.

Arithmetic Number Deficient Number Frugal Number Odious Number Pernicious Number

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
23
Digit product
486
Digital root
5
Palindrome
No
Bit width
18 bits
Reversed
963,131
Square (n²)
17,257,814,161
Cube (n³)
2,267,141,788,516,409
Divisor count
8
σ(n) — sum of divisors
153,600
φ(n) — Euler's totient
112,308
Sum of prime factors
404

Primality

Prime factorization: 7 3 × 383

Nearest primes: 131,363 (−6) · 131,371 (+2)

Divisors & multiples

All divisors (8)
1 · 7 · 49 · 343 · 383 · 2681 · 18767 · 131369
Aliquot sum (sum of proper divisors): 22,231
Factor pairs (a × b = 131,369)
1 × 131369
7 × 18767
49 × 2681
343 × 383
First multiples
131,369 · 262,738 (double) · 394,107 · 525,476 · 656,845 · 788,214 · 919,583 · 1,050,952 · 1,182,321 · 1,313,690

Sums & aliquot sequence

As consecutive integers: 65,684 + 65,685 18,764 + 18,765 + … + 18,770 9,377 + 9,378 + … + 9,390 2,657 + 2,658 + … + 2,705
Aliquot sequence: 131,369 22,231 3,113 295 65 19 1 0 — terminates at zero

Continued fraction of √n

√131,369 = [362; (2, 4, 2, 1, 2, 1, 3, 1, 7, 1, 17, 4, 4, 3, 1, 1, 11, 1, 2, 1, 1, 3, 2, 1, …)]

Representations

In words
one hundred thirty-one thousand three hundred sixty-nine
Ordinal
131369th
Binary
100000000100101001
Octal
400451
Hexadecimal
0x20129
Base64
AgEp
One's complement
4,294,835,926 (32-bit)
Scientific notation
1.31369 × 10⁵
As a duration
131,369 s = 1 day, 12 hours, 29 minutes, 29 seconds
In other bases
ternary (3) 20200012112
quaternary (4) 200010221
quinary (5) 13200434
senary (6) 2452105
septenary (7) 1055000
nonary (9) 220175
undecimal (11) 8a777
duodecimal (12) 64035
tridecimal (13) 47a44
tetradecimal (14) 35c37
pentadecimal (15) 28dce

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλατξθʹ
Mayan (base 20)
𝋰·𝋨·𝋨·𝋩
Chinese
一十三萬一千三百六十九
Chinese (financial)
壹拾參萬壹仟參佰陸拾玖
In other modern scripts
Eastern Arabic ١٣١٣٦٩ Devanagari १३१३६९ Bengali ১৩১৩৬৯ Tamil ௧௩௧௩௬௯ Thai ๑๓๑๓๖๙ Tibetan ༡༣༡༣༦༩ Khmer ១៣១៣៦៩ Lao ໑໓໑໓໖໙ Burmese ၁၃၁၃၆၉

Also seen as

Unicode codepoint
𠄩
CJK Unified Ideograph-20129
U+20129
Other letter (Lo)

UTF-8 encoding: F0 A0 84 A9 (4 bytes).

Hex color
#020129
RGB(2, 1, 41)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.41.

Address
0.2.1.41
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.1.41

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 131,369 and was likely granted around 1872.

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

Related reading

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