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137,989

137,989 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.).

137,989 (one hundred thirty-seven thousand nine hundred eighty-nine) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 17 × 8,117. Written other ways, in hexadecimal, 0x21B05.

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

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
37
Digit product
13,608
Digital root
1
Palindrome
No
Bit width
18 bits
Reversed
989,731
Recamán's sequence
a(492,849) = 137,989
Square (n²)
19,040,964,121
Cube (n³)
2,627,443,598,092,669
Divisor count
4
σ(n) — sum of divisors
146,124
φ(n) — Euler's totient
129,856
Sum of prime factors
8,134

Primality

Prime factorization: 17 × 8117

Nearest primes: 137,983 (−6) · 137,993 (+4)

Divisors & multiples

All divisors (4)
1 · 17 · 8117 · 137989
Aliquot sum (sum of proper divisors): 8,135
Factor pairs (a × b = 137,989)
1 × 137989
17 × 8117
First multiples
137,989 · 275,978 (double) · 413,967 · 551,956 · 689,945 · 827,934 · 965,923 · 1,103,912 · 1,241,901 · 1,379,890

Sums & aliquot sequence

As a sum of two squares: 33² + 370² = 145² + 342²
As consecutive integers: 68,994 + 68,995 8,109 + 8,110 + … + 8,125 4,042 + 4,043 + … + 4,075
Aliquot sequence: 137,989 8,135 1,633 95 25 6 6 — reaches a perfect number

Continued fraction of √n

√137,989 = [371; (2, 7, 2, 22, 22, 2, 7, 2, 742)]

Period length 9 — the block in parentheses repeats forever.

Representations

In words
one hundred thirty-seven thousand nine hundred eighty-nine
Ordinal
137989th
Binary
100001101100000101
Octal
415405
Hexadecimal
0x21B05
Base64
AhsF
One's complement
4,294,829,306 (32-bit)
Scientific notation
1.37989 × 10⁵
As a duration
137,989 s = 1 day, 14 hours, 19 minutes, 49 seconds
In other bases
ternary (3) 21000021201
quaternary (4) 201230011
quinary (5) 13403424
senary (6) 2542501
septenary (7) 1113205
nonary (9) 230251
undecimal (11) 94745
duodecimal (12) 67a31
tridecimal (13) 4aa67
tetradecimal (14) 38405
pentadecimal (15) 2ad44

As an angle

137,989° = 383 × 360° + 109°
109° ≈ 1.902 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλζϡπθʹ
Mayan (base 20)
𝋱·𝋤·𝋳·𝋩
Chinese
一十三萬七千九百八十九
Chinese (financial)
壹拾參萬柒仟玖佰捌拾玖
In other modern scripts
Eastern Arabic ١٣٧٩٨٩ Devanagari १३७९८९ Bengali ১৩৭৯৮৯ Tamil ௧௩௭௯௮௯ Thai ๑๓๗๙๘๙ Tibetan ༡༣༧༩༨༩ Khmer ១៣៧៩៨៩ Lao ໑໓໗໙໘໙ Burmese ၁၃၇၉၈၉

Also seen as

Unicode codepoint
𡬅
CJK Unified Ideograph-21B05
U+21B05
Other letter (Lo)

UTF-8 encoding: F0 A1 AC 85 (4 bytes).

Hex color
#021B05
RGB(2, 27, 5)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.5.

Address
0.2.27.5
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.27.5

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 137,989 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