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131,365

131,365 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.).

131,365 (one hundred thirty-one thousand three hundred sixty-five) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 5 × 13 × 43 × 47. Written other ways, in hexadecimal, 0x20125.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
19
Digit product
270
Digital root
1
Palindrome
No
Bit width
18 bits
Reversed
563,131
Square (n²)
17,256,763,225
Cube (n³)
2,266,934,701,052,125
Divisor count
16
σ(n) — sum of divisors
177,408
φ(n) — Euler's totient
92,736
Sum of prime factors
108

Primality

Prime factorization: 5 × 13 × 43 × 47

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

Divisors & multiples

All divisors (16)
1 · 5 · 13 · 43 · 47 · 65 · 215 · 235 · 559 · 611 · 2021 · 2795 · 3055 · 10105 · 26273 · 131365
Aliquot sum (sum of proper divisors): 46,043
Factor pairs (a × b = 131,365)
1 × 131365
5 × 26273
13 × 10105
43 × 3055
47 × 2795
65 × 2021
215 × 611
235 × 559
First multiples
131,365 · 262,730 (double) · 394,095 · 525,460 · 656,825 · 788,190 · 919,555 · 1,050,920 · 1,182,285 · 1,313,650

Sums & aliquot sequence

As consecutive integers: 65,682 + 65,683 26,271 + 26,272 + 26,273 + 26,274 + 26,275 13,132 + 13,133 + … + 13,141 10,099 + 10,100 + … + 10,111
Aliquot sequence: 131,365 46,043 1,165 239 1 0 — terminates at zero

Continued fraction of √n

√131,365 = [362; (2, 3, 1, 8, 2, 1, 1, 19, 1, 1, 5, 1, 2, 1, 3, 1, 9, 1, 2, 1, 1, 8, 2, 1, …)]

Representations

In words
one hundred thirty-one thousand three hundred sixty-five
Ordinal
131365th
Binary
100000000100100101
Octal
400445
Hexadecimal
0x20125
Base64
AgEl
One's complement
4,294,835,930 (32-bit)
Scientific notation
1.31365 × 10⁵
As a duration
131,365 s = 1 day, 12 hours, 29 minutes, 25 seconds
In other bases
ternary (3) 20200012101
quaternary (4) 200010211
quinary (5) 13200430
senary (6) 2452101
septenary (7) 1054663
nonary (9) 220171
undecimal (11) 8a773
duodecimal (12) 64031
tridecimal (13) 47a40
tetradecimal (14) 35c33
pentadecimal (15) 28dca

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλατξεʹ
Mayan (base 20)
𝋰·𝋨·𝋨·𝋥
Chinese
一十三萬一千三百六十五
Chinese (financial)
壹拾參萬壹仟參佰陸拾伍
In other modern scripts
Eastern Arabic ١٣١٣٦٥ Devanagari १३१३६५ Bengali ১৩১৩৬৫ Tamil ௧௩௧௩௬௫ Thai ๑๓๑๓๖๕ Tibetan ༡༣༡༣༦༥ Khmer ១៣១៣៦៥ Lao ໑໓໑໓໖໕ Burmese ၁၃၁၃၆၅

Also seen as

Unicode codepoint
𠄥
CJK Unified Ideograph-20125
U+20125
Other letter (Lo)

UTF-8 encoding: F0 A0 84 A5 (4 bytes).

Hex color
#020125
RGB(2, 1, 37)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.37.

Address
0.2.1.37
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.1.37

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 131,365 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 131365 first appears in π at position 194,540 of the decimal expansion (the 194,540ordinal-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