Live analysis

137,721

137,721 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.).

137,721 (one hundred thirty-seven thousand seven hundred twenty-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 3 × 29 × 1,583. Written other ways, in hexadecimal, 0x219F9.

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

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

137,709 137,710 137,711 137,712 137,713 137,714 137,715 137,716 137,717 137,718 137,719 137,720 137,721 137,722 137,723 137,724 137,725 137,726 137,727 137,728 137,729 137,730 137,731 137,732 137,733

less more

Properties

Parity: Odd
Digit count: 6
Digit sum: 21
Digit product: 294
Digital root: 3
Palindrome: No
Bit width: 18 bits
Reversed: 127,731
Recamán's sequence: a(493,385) = 137,721
Square (n²): 18,967,073,841
Cube (n³): 2,612,164,376,456,361
Divisor count: 8
σ(n) — sum of divisors: 190,080
φ(n) — Euler's totient: 88,592
Sum of prime factors: 1,615

Primality

Prime factorization: 3 × 29 × 1583

Nearest primes: 137,713 (−8) · 137,723 (+2)

Divisors & multiples

All divisors (8)

1 · 3 · 29 · 87 · 1583 · 4749 · 45907 · 137721

Aliquot sum (sum of proper divisors): 52,359

Factor pairs (a × b = 137,721)

1 × 137721

3 × 45907

29 × 4749

87 × 1583

First multiples

137,721 · 275,442 (double) · 413,163 · 550,884 · 688,605 · 826,326 · 964,047 · 1,101,768 · 1,239,489 · 1,377,210

Sums & aliquot sequence

As consecutive integers: 68,860 + 68,861 45,906 + 45,907 + 45,908 22,951 + 22,952 + 22,953 + 22,954 + 22,955 + 22,956 4,735 + 4,736 + … + 4,763

Aliquot sequence: 137,721 → 52,359 → 19,833 → 9,063 → 4,977 → 3,343 → 1 → 0 — terminates at zero

Continued fraction of √n

√137,721 = [371; (9, 3, 1, 1, 1, 1, 1, 1, 1, 4, 1, 5, 4, 1, 2, 2, 6, 3, 1, 4, 2, 1, 3, 1, …)]

Representations

In words: one hundred thirty-seven thousand seven hundred twenty-one
Ordinal: 137721st
Binary: 100001100111111001
Octal: 414771
Hexadecimal: 0x219F9
Base64: Ahn5
One's complement: 4,294,829,574 (32-bit)
Scientific notation: 1.37721 × 10⁵
As a duration: 137,721 s = 1 day, 14 hours, 15 minutes, 21 seconds

In other bases

ternary (3) 20222220210

quaternary (4) 201213321

quinary (5) 13401341

senary (6) 2541333

septenary (7) 1112343

nonary (9) 228823

undecimal (11) 94521

duodecimal (12) 67849

tridecimal (13) 4a8bc

tetradecimal (14) 38293

pentadecimal (15) 2ac16

As an angle

137,721° = 382 × 360° + 201°

201° ≈ 3.508 rad

Compass bearing: SSW (south-southwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic: 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺
Greek (Milesian): ͵ρλζψκαʹ
Mayan (base 20): 𝋱·𝋤·𝋦·𝋡
Chinese: 一十三萬七千七百二十一
Chinese (financial): 壹拾參萬柒仟柒佰貳拾壹

In other modern scripts

Eastern Arabic ١٣٧٧٢١ Devanagari १३७७२१ Bengali ১৩৭৭২১ Tamil ௧௩௭௭௨௧ Thai ๑๓๗๗๒๑ Tibetan ༡༣༧༧༢༡ Khmer ១៣៧៧២១ Lao ໑໓໗໗໒໑ Burmese ၁၃၇၇၂၁

Also seen as

Unicode codepoint

𡧹

CJK Unified Ideograph-219F9

U+219F9

Other letter (Lo)

UTF-8 encoding: F0 A1 A7 B9 (4 bytes).

Lookup U+219F9 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0219F9

RGB(2, 25, 249)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.25.249.

Address: 0.2.25.249
Class: reserved
IPv4-mapped IPv6: ::ffff:0.2.25.249

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 137,721 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 US137,721 on Google Patents ↗ Look up on USPTO ↗