Live analysis

131,442

131,442 is a composite number, even.

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.).

131,442 (one hundred thirty-one thousand four hundred forty-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 19 × 1,153. Its proper divisors sum to 145,518, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20172.

Abundant Number Arithmetic Number Cube-Free Evil Number Recamán's Sequence Semiperfect Number Squarefree

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

131,430 131,431 131,432 131,433 131,434 131,435 131,436 131,437 131,438 131,439 131,440 131,441 131,442 131,443 131,444 131,445 131,446 131,447 131,448 131,449 131,450 131,451 131,452 131,453 131,454

less more

Properties

Parity: Even
Digit count: 6
Digit sum: 15
Digit product: 96
Digital root: 6
Palindrome: No
Bit width: 18 bits
Reversed: 244,131
Recamán's sequence: a(229,488) = 131,442
Square (n²): 17,276,999,364
Cube (n³): 2,270,923,350,402,888
Divisor count: 16
σ(n) — sum of divisors: 276,960
φ(n) — Euler's totient: 41,472
Sum of prime factors: 1,177

Primality

Prime factorization: 2 × 3 × 19 × 1153

Nearest primes: 131,441 (−1) · 131,447 (+5)

Divisors & multiples

All divisors (16)

1 · 2 · 3 · 6 · 19 · 38 · 57 · 114 · 1153 · 2306 · 3459 · 6918 · 21907 · 43814 · 65721 (half) · 131442

Aliquot sum (sum of proper divisors): 145,518

Factor pairs (a × b = 131,442)

1 × 131442

2 × 65721

3 × 43814

6 × 21907

19 × 6918

38 × 3459

57 × 2306

114 × 1153

First multiples

131,442 · 262,884 (double) · 394,326 · 525,768 · 657,210 · 788,652 · 920,094 · 1,051,536 · 1,182,978 · 1,314,420

Sums & aliquot sequence

As consecutive integers: 43,813 + 43,814 + 43,815 32,859 + 32,860 + 32,861 + 32,862 10,948 + 10,949 + … + 10,959 6,909 + 6,910 + … + 6,927

Aliquot sequence: 131,442 → 145,518 → 150,162 → 160,878 → 160,890 → 240,006 → 310,362 → 391,206 → 399,498 → 472,278 → 472,290 → 930,846 → 1,257,954 → 1,257,966 → 1,628,658 → 1,900,140 → 3,905,940 — unresolved within range

Continued fraction of √n

√131,442 = [362; (1, 1, 4, 1, 1, 3, 17, 2, 2, 10, 1, 1, 2, 2, 8, 1, 7, 3, 1, 17, 1, 5, 21, 1, …)]

Representations

In words: one hundred thirty-one thousand four hundred forty-two
Ordinal: 131442nd
Binary: 100000000101110010
Octal: 400562
Hexadecimal: 0x20172
Base64: AgFy
One's complement: 4,294,835,853 (32-bit)
Scientific notation: 1.31442 × 10⁵
As a duration: 131,442 s = 1 day, 12 hours, 30 minutes, 42 seconds

In other bases

ternary (3) 20200022020

quaternary (4) 200011302

quinary (5) 13201232

senary (6) 2452310

septenary (7) 1055133

nonary (9) 220266

undecimal (11) 8a833

duodecimal (12) 64096

tridecimal (13) 47a9c

tetradecimal (14) 35c8a

pentadecimal (15) 28e2c

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic: 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian): ͵ρλαυμβʹ
Mayan (base 20): 𝋰·𝋨·𝋬·𝋢
Chinese: 一十三萬一千四百四十二
Chinese (financial): 壹拾參萬壹仟肆佰肆拾貳

In other modern scripts

Eastern Arabic ١٣١٤٤٢ Devanagari १३१४४२ Bengali ১৩১৪৪২ Tamil ௧௩௧௪௪௨ Thai ๑๓๑๔๔๒ Tibetan ༡༣༡༤༤༢ Khmer ១៣១៤៤២ Lao ໑໓໑໔໔໒ Burmese ၁၃၁၄၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131442, here are decompositions:

5 + 131437 = 131442
11 + 131431 = 131442
29 + 131413 = 131442
61 + 131381 = 131442
71 + 131371 = 131442
79 + 131363 = 131442
131 + 131311 = 131442
139 + 131303 = 131442

Showing the first eight; more decompositions exist.

Unicode codepoint

𠅲

CJK Unified Ideograph-20172

U+20172

Other letter (Lo)

UTF-8 encoding: F0 A0 85 B2 (4 bytes).

Lookup U+20172 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#020172

RGB(2, 1, 114)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.114.

Address: 0.2.1.114
Class: reserved
IPv4-mapped IPv6: ::ffff:0.2.1.114

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 131,442 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 US131,442 on Google Patents ↗ Look up on USPTO ↗