Live analysis

131,421

131,421 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.).

131,421 (one hundred thirty-one thousand four hundred twenty-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 3 × 71 × 617. Written other ways, in hexadecimal, 0x2015D.

Arithmetic Number Cube-Free Deficient Number Happy Number Odious Number Pernicious Number Recamán's Sequence Sphenic Number Squarefree

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

131,409 131,410 131,411 131,412 131,413 131,414 131,415 131,416 131,417 131,418 131,419 131,420 131,421 131,422 131,423 131,424 131,425 131,426 131,427 131,428 131,429 131,430 131,431 131,432 131,433

less more

Properties

Parity: Odd
Digit count: 6
Digit sum: 12
Digit product: 24
Digital root: 3
Palindrome: No
Bit width: 18 bits
Reversed: 124,131
Recamán's sequence: a(229,530) = 131,421
Square (n²): 17,271,479,241
Cube (n³): 2,269,835,073,331,461
Divisor count: 8
σ(n) — sum of divisors: 177,984
φ(n) — Euler's totient: 86,240
Sum of prime factors: 691

Primality

Prime factorization: 3 × 71 × 617

Nearest primes: 131,413 (−8) · 131,431 (+10)

Divisors & multiples

All divisors (8)

1 · 3 · 71 · 213 · 617 · 1851 · 43807 · 131421

Aliquot sum (sum of proper divisors): 46,563

Factor pairs (a × b = 131,421)

1 × 131421

3 × 43807

71 × 1851

213 × 617

First multiples

131,421 · 262,842 (double) · 394,263 · 525,684 · 657,105 · 788,526 · 919,947 · 1,051,368 · 1,182,789 · 1,314,210

Sums & aliquot sequence

As consecutive integers: 65,710 + 65,711 43,806 + 43,807 + 43,808 21,901 + 21,902 + 21,903 + 21,904 + 21,905 + 21,906 1,816 + 1,817 + … + 1,886

Aliquot sequence: 131,421 → 46,563 → 26,013 → 14,307 → 5,853 → 1,955 → 637 → 161 → 31 → 1 → 0 — terminates at zero

Continued fraction of √n

√131,421 = [362; (1, 1, 11, 1, 3, 1, 2, 1, 2, 19, 4, 2, 1, 11, 2, 1, 1, 4, 2, 2, 10, 1, 2, 1, …)]

Representations

In words: one hundred thirty-one thousand four hundred twenty-one
Ordinal: 131421st
Binary: 100000000101011101
Octal: 400535
Hexadecimal: 0x2015D
Base64: AgFd
One's complement: 4,294,835,874 (32-bit)
Scientific notation: 1.31421 × 10⁵
As a duration: 131,421 s = 1 day, 12 hours, 30 minutes, 21 seconds

In other bases

ternary (3) 20200021110

quaternary (4) 200011131

quinary (5) 13201141

senary (6) 2452233

septenary (7) 1055103

nonary (9) 220243

undecimal (11) 8a814

duodecimal (12) 64079

tridecimal (13) 47a84

tetradecimal (14) 35c73

pentadecimal (15) 28e16

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒁹
Egyptian hieroglyphic: 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺
Greek (Milesian): ͵ρλαυκαʹ
Mayan (base 20): 𝋰·𝋨·𝋫·𝋡
Chinese: 一十三萬一千四百二十一
Chinese (financial): 壹拾參萬壹仟肆佰貳拾壹

In other modern scripts

Eastern Arabic ١٣١٤٢١ Devanagari १३१४२१ Bengali ১৩১৪২১ Tamil ௧௩௧௪௨௧ Thai ๑๓๑๔๒๑ Tibetan ༡༣༡༤༢༡ Khmer ១៣១៤២១ Lao ໑໓໑໔໒໑ Burmese ၁၃၁၄၂၁

Also seen as

Unicode codepoint

𠅝

CJK Unified Ideograph-2015D

U+2015D

Other letter (Lo)

UTF-8 encoding: F0 A0 85 9D (4 bytes).

Lookup U+2015D on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#02015D

RGB(2, 1, 93)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.93.

Address: 0.2.1.93
Class: reserved
IPv4-mapped IPv6: ::ffff:0.2.1.93

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 131,421 and was likely granted around 1872.

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

Look up US131,421 on Google Patents ↗ Look up on USPTO ↗