number.wiki
Live analysis

131,261

131,261 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.).
Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
14
Digit product
36
Digital root
5
Palindrome
No
Bit width
18 bits
Reversed
162,131
Square (n²)
17,229,450,121
Cube (n³)
2,261,554,852,332,581
Divisor count
8
σ(n) — sum of divisors
147,840
φ(n) — Euler's totient
115,632
Sum of prime factors
475

Primality

Prime factorization: 13 × 23 × 439

Nearest primes: 131,251 (−10) · 131,267 (+6)

Divisors & multiples

All divisors (8)
1 · 13 · 23 · 299 · 439 · 5707 · 10097 · 131261
Aliquot sum (sum of proper divisors): 16,579
Factor pairs (a × b = 131,261)
1 × 131261
13 × 10097
23 × 5707
299 × 439
First multiples
131,261 · 262,522 (double) · 393,783 · 525,044 · 656,305 · 787,566 · 918,827 · 1,050,088 · 1,181,349 · 1,312,610

Sums & aliquot sequence

As consecutive integers: 65,630 + 65,631 10,091 + 10,092 + … + 10,103 5,696 + 5,697 + … + 5,718 5,036 + 5,037 + … + 5,061
Aliquot sequence: 131,261 16,579 341 43 1 0 — terminates at zero

Continued fraction of √n

√131,261 = [362; (3, 2, 1, 24, 3, 2, 42, 5, 6, 1, 1, 2, 1, 13, 4, 1, 1, 1, 1, 20, 10, 1, 1, 1, …)]

Representations

In words
one hundred thirty-one thousand two hundred sixty-one
Ordinal
131261st
Binary
100000000010111101
Octal
400275
Hexadecimal
0x200BD
Base64
AgC9
One's complement
4,294,836,034 (32-bit)
Scientific notation
1.31261 × 10⁵
As a duration
131,261 s = 1 day, 12 hours, 27 minutes, 41 seconds
In other bases
ternary (3) 20200001112
quaternary (4) 200002331
quinary (5) 13200021
senary (6) 2451405
septenary (7) 1054454
nonary (9) 220045
undecimal (11) 8a689
duodecimal (12) 63b65
tridecimal (13) 47990
tetradecimal (14) 35b9b
pentadecimal (15) 28d5b

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ρλασξαʹ
Mayan (base 20)
𝋰·𝋨·𝋣·𝋡
Chinese
一十三萬一千二百六十一
Chinese (financial)
壹拾參萬壹仟貳佰陸拾壹
In other modern scripts
Eastern Arabic ١٣١٢٦١ Devanagari १३१२६१ Bengali ১৩১২৬১ Tamil ௧௩௧௨௬௧ Thai ๑๓๑๒๖๑ Tibetan ༡༣༡༢༦༡ Khmer ១៣១២៦១ Lao ໑໓໑໒໖໑ Burmese ၁၃၁၂၆၁

Also seen as

Unicode codepoint
𠂽
CJK Unified Ideograph-200Bd
U+200BD
Other letter (Lo)

UTF-8 encoding: F0 A0 82 BD (4 bytes).

Hex color
#0200BD
RGB(2, 0, 189)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.0.189.

Address
0.2.0.189
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.0.189

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 131,261 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 131261 first appears in π at position 328,329 of the decimal expansion (the 328,329ordinal-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.