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137,691

137,691 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.).

137,691 (one hundred thirty-seven thousand six hundred ninety-one) is an odd 6-digit number. It is a composite number with 6 divisors, and factors as 3² × 15,299. Written other ways, in hexadecimal, 0x219DB.

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

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
27
Digit product
1,134
Digital root
9
Palindrome
No
Bit width
18 bits
Reversed
196,731
Recamán's sequence
a(493,445) = 137,691
Square (n²)
18,958,811,481
Cube (n³)
2,610,457,711,630,371
Divisor count
6
σ(n) — sum of divisors
198,900
φ(n) — Euler's totient
91,788
Sum of prime factors
15,305

Primality

Prime factorization: 3 2 × 15299

Nearest primes: 137,659 (−32) · 137,699 (+8)

Divisors & multiples

All divisors (6)
1 · 3 · 9 · 15299 · 45897 · 137691
Aliquot sum (sum of proper divisors): 61,209
Factor pairs (a × b = 137,691)
1 × 137691
3 × 45897
9 × 15299
First multiples
137,691 · 275,382 (double) · 413,073 · 550,764 · 688,455 · 826,146 · 963,837 · 1,101,528 · 1,239,219 · 1,376,910

Sums & aliquot sequence

As consecutive integers: 68,845 + 68,846 45,896 + 45,897 + 45,898 22,946 + 22,947 + 22,948 + 22,949 + 22,950 + 22,951 15,295 + 15,296 + … + 15,303
Aliquot sequence: 137,691 61,209 29,511 14,249 1 0 — terminates at zero

Continued fraction of √n

√137,691 = [371; (14, 1, 5, 3, 3, 2, 1, 15, 2, 3, 2, 2, 1, 2, 7, 2, 3, 1, 6, 1, 3, 1, 10, 1, …)]

Representations

In words
one hundred thirty-seven thousand six hundred ninety-one
Ordinal
137691st
Binary
100001100111011011
Octal
414733
Hexadecimal
0x219DB
Base64
Ahnb
One's complement
4,294,829,604 (32-bit)
Scientific notation
1.37691 × 10⁵
As a duration
137,691 s = 1 day, 14 hours, 14 minutes, 51 seconds
In other bases
ternary (3) 20222212200
quaternary (4) 201213123
quinary (5) 13401231
senary (6) 2541243
septenary (7) 1112301
nonary (9) 228780
undecimal (11) 944a4
duodecimal (12) 67823
tridecimal (13) 4a898
tetradecimal (14) 38271
pentadecimal (15) 2abe6

As an angle

137,691° = 382 × 360° + 171°
171° ≈ 2.985 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ρλζχϟαʹ
Mayan (base 20)
𝋱·𝋤·𝋤·𝋫
Chinese
一十三萬七千六百九十一
Chinese (financial)
壹拾參萬柒仟陸佰玖拾壹
In other modern scripts
Eastern Arabic ١٣٧٦٩١ Devanagari १३७६९१ Bengali ১৩৭৬৯১ Tamil ௧௩௭௬௯௧ Thai ๑๓๗๖๙๑ Tibetan ༡༣༧༦༩༡ Khmer ១៣៧៦៩១ Lao ໑໓໗໖໙໑ Burmese ၁၃၇၆၉၁

Also seen as

Unicode codepoint
𡧛
CJK Unified Ideograph-219Db
U+219DB
Other letter (Lo)

UTF-8 encoding: F0 A1 A7 9B (4 bytes).

Hex color
#0219DB
RGB(2, 25, 219)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.25.219.

Address
0.2.25.219
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.25.219

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 137,691 and was likely granted around 1872.

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

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.