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131,977

131,977 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.).

131,977 (one hundred thirty-one thousand nine hundred seventy-seven) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 271 × 487. Written other ways, in hexadecimal, 0x20389.

Arithmetic Number Cube-Free Deficient Number Evil Number Happy Number Recamán's Sequence Semiprime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
28
Digit product
1,323
Digital root
1
Palindrome
No
Bit width
18 bits
Reversed
779,131
Recamán's sequence
a(228,418) = 131,977
Square (n²)
17,417,928,529
Cube (n³)
2,298,765,953,471,833
Divisor count
4
σ(n) — sum of divisors
132,736
φ(n) — Euler's totient
131,220
Sum of prime factors
758

Primality

Prime factorization: 271 × 487

Nearest primes: 131,969 (−8) · 132,001 (+24)

Divisors & multiples

All divisors (4)
1 · 271 · 487 · 131977
Aliquot sum (sum of proper divisors): 759
Factor pairs (a × b = 131,977)
1 × 131977
271 × 487
First multiples
131,977 · 263,954 (double) · 395,931 · 527,908 · 659,885 · 791,862 · 923,839 · 1,055,816 · 1,187,793 · 1,319,770

Sums & aliquot sequence

As consecutive integers: 65,988 + 65,989 352 + 353 + … + 622 28 + 29 + … + 514
Aliquot sequence: 131,977 759 393 135 105 87 33 15 9 4 3 1 0 — terminates at zero

Continued fraction of √n

√131,977 = [363; (3, 2, 29, 1, 5, 2, 6, 4, 1, 8, 6, 10, 2, 1, 2, 1, 2, 5, 3, 1, 3, 4, 1, 3, …)]

Representations

In words
one hundred thirty-one thousand nine hundred seventy-seven
Ordinal
131977th
Binary
100000001110001001
Octal
401611
Hexadecimal
0x20389
Base64
AgOJ
One's complement
4,294,835,318 (32-bit)
Scientific notation
1.31977 × 10⁵
As a duration
131,977 s = 1 day, 12 hours, 39 minutes, 37 seconds
In other bases
ternary (3) 20201001001
quaternary (4) 200032021
quinary (5) 13210402
senary (6) 2455001
septenary (7) 1056526
nonary (9) 221031
undecimal (11) 9017a
duodecimal (12) 64461
tridecimal (13) 480c1
tetradecimal (14) 3614d
pentadecimal (15) 29187

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλαϡοζʹ
Mayan (base 20)
𝋰·𝋩·𝋲·𝋱
Chinese
一十三萬一千九百七十七
Chinese (financial)
壹拾參萬壹仟玖佰柒拾柒
In other modern scripts
Eastern Arabic ١٣١٩٧٧ Devanagari १३१९७७ Bengali ১৩১৯৭৭ Tamil ௧௩௧௯௭௭ Thai ๑๓๑๙๗๗ Tibetan ༡༣༡༩༧༧ Khmer ១៣១៩៧៧ Lao ໑໓໑໙໗໗ Burmese ၁၃၁၉၇၇

Also seen as

Unicode codepoint
𠎉
CJK Unified Ideograph-20389
U+20389
Other letter (Lo)

UTF-8 encoding: F0 A0 8E 89 (4 bytes).

Hex color
#020389
RGB(2, 3, 137)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.137.

Address
0.2.3.137
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.3.137

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 131,977 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 131977 first appears in π at position 208,358 of the decimal expansion (the 208,358ordinal-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