Live analysis

142,731

142,731 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.).

142,731 (one hundred forty-two thousand seven hundred thirty-one) is an odd 6-digit number. It is a composite number with 6 divisors, and factors as 3² × 15,859. Written other ways, in hexadecimal, 0x22D8B.

Cube-Free Deficient Number Odious Number Recamán's Sequence

Interestingness

★ ☆ ☆ ☆ ☆

2 notable facts · grade F

142,719 142,720 142,721 142,722 142,723 142,724 142,725 142,726 142,727 142,728 142,729 142,730 142,731 142,732 142,733 142,734 142,735 142,736 142,737 142,738 142,739 142,740 142,741 142,742 142,743

less more

Properties

Parity: Odd
Digit count: 6
Digit sum: 18
Digit product: 168
Digital root: 9
Palindrome: No
Bit width: 18 bits
Reversed: 137,241
Recamán's sequence: a(222,954) = 142,731
Square (n²): 20,372,138,361
Cube (n³): 2,907,735,680,403,891
Divisor count: 6
σ(n) — sum of divisors: 206,180
φ(n) — Euler's totient: 95,148
Sum of prime factors: 15,865

Primality

Prime factorization: 3 ² × 15859

Nearest primes: 142,711 (−20) · 142,733 (+2)

Divisors & multiples

All divisors (6)

1 · 3 · 9 · 15859 · 47577 · 142731

Aliquot sum (sum of proper divisors): 63,449

Factor pairs (a × b = 142,731)

1 × 142731

3 × 47577

9 × 15859

First multiples

142,731 · 285,462 (double) · 428,193 · 570,924 · 713,655 · 856,386 · 999,117 · 1,141,848 · 1,284,579 · 1,427,310

Sums & aliquot sequence

As consecutive integers: 71,365 + 71,366 47,576 + 47,577 + 47,578 23,786 + 23,787 + 23,788 + 23,789 + 23,790 + 23,791 15,855 + 15,856 + … + 15,863

Aliquot sequence: 142,731 → 63,449 → 1,015 → 425 → 133 → 27 → 13 → 1 → 0 — terminates at zero

Continued fraction of √n

√142,731 = [377; (1, 3, 1, 15, 1, 1, 1, 2, 14, 1, 2, 1, 3, 1, 2, 3, 8, 10, 4, 2, 1, 8, 5, 16, …)]

Representations

In words: one hundred forty-two thousand seven hundred thirty-one
Ordinal: 142731st
Binary: 100010110110001011
Octal: 426613
Hexadecimal: 0x22D8B
Base64: Ai2L
One's complement: 4,294,824,564 (32-bit)
Scientific notation: 1.42731 × 10⁵
As a duration: 142,731 s = 1 day, 15 hours, 38 minutes, 51 seconds

In other bases

ternary (3) 21020210100

quaternary (4) 202312023

quinary (5) 14031411

senary (6) 3020443

septenary (7) 1133061

nonary (9) 236710

undecimal (11) 98266

duodecimal (12) 6a723

tridecimal (13) 4cc74

tetradecimal (14) 3a031

pentadecimal (15) 2c456

As an angle

142,731° = 396 × 360° + 171°

171° ≈ 2.985 rad

Compass bearing: S (south)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic: 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺
Greek (Milesian): ͵ρμβψλαʹ
Mayan (base 20): 𝋱·𝋰·𝋰·𝋫
Chinese: 一十四萬二千七百三十一
Chinese (financial): 壹拾肆萬貳仟柒佰參拾壹

In other modern scripts

Eastern Arabic ١٤٢٧٣١ Devanagari १४२७३१ Bengali ১৪২৭৩১ Tamil ௧௪௨௭௩௧ Thai ๑๔๒๗๓๑ Tibetan ༡༤༢༧༣༡ Khmer ១៤២៧៣១ Lao ໑໔໒໗໓໑ Burmese ၁၄၂၇၃၁

Also seen as

Unicode codepoint

𢶋

CJK Unified Ideograph-22D8B

U+22D8B

Other letter (Lo)

UTF-8 encoding: F0 A2 B6 8B (4 bytes).

Lookup U+22D8B on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#022D8B

RGB(2, 45, 139)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.139.

Address: 0.2.45.139
Class: reserved
IPv4-mapped IPv6: ::ffff:0.2.45.139

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 142,731 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 US142,731 on Google Patents ↗ Look up on USPTO ↗

Position in π

The digit sequence 142731 first appears in π at position 216,384 of the decimal expansion (the 216,384ordinal-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.

Look up 142731 on Pi Search ↗