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137,243

137,243 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.).

137,243 (one hundred thirty-seven thousand two hundred forty-three) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 71 × 1,933. Written other ways, in hexadecimal, 0x2181B.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Semiprime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
20
Digit product
504
Digital root
2
Palindrome
No
Bit width
18 bits
Reversed
342,731
Square (n²)
18,835,641,049
Cube (n³)
2,585,059,884,487,907
Divisor count
4
σ(n) — sum of divisors
139,248
φ(n) — Euler's totient
135,240
Sum of prime factors
2,004

Primality

Prime factorization: 71 × 1933

Nearest primes: 137,239 (−4) · 137,251 (+8)

Divisors & multiples

All divisors (4)
1 · 71 · 1933 · 137243
Aliquot sum (sum of proper divisors): 2,005
Factor pairs (a × b = 137,243)
1 × 137243
71 × 1933
First multiples
137,243 · 274,486 (double) · 411,729 · 548,972 · 686,215 · 823,458 · 960,701 · 1,097,944 · 1,235,187 · 1,372,430

Sums & aliquot sequence

As consecutive integers: 68,621 + 68,622 1,898 + 1,899 + … + 1,968 896 + 897 + … + 1,037
Aliquot sequence: 137,243 2,005 407 49 8 7 1 0 — terminates at zero

Continued fraction of √n

√137,243 = [370; (2, 6, 3, 2, 1, 3, 1, 9, 2, 1, 3, 7, 15, 1, 1, 1, 2, 7, 1, 18, 1, 1, 1, 1, …)]

Representations

In words
one hundred thirty-seven thousand two hundred forty-three
Ordinal
137243rd
Binary
100001100000011011
Octal
414033
Hexadecimal
0x2181B
Base64
Ahgb
One's complement
4,294,830,052 (32-bit)
Scientific notation
1.37243 × 10⁵
As a duration
137,243 s = 1 day, 14 hours, 7 minutes, 23 seconds
In other bases
ternary (3) 20222021002
quaternary (4) 201200123
quinary (5) 13342433
senary (6) 2535215
septenary (7) 1111061
nonary (9) 228232
undecimal (11) 94127
duodecimal (12) 6750b
tridecimal (13) 4a612
tetradecimal (14) 38031
pentadecimal (15) 2a9e8

As an angle

137,243° = 381 × 360° + 83°
83° ≈ 1.449 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian)
͵ρλζσμγʹ
Mayan (base 20)
𝋱·𝋣·𝋢·𝋣
Chinese
一十三萬七千二百四十三
Chinese (financial)
壹拾參萬柒仟貳佰肆拾參
In other modern scripts
Eastern Arabic ١٣٧٢٤٣ Devanagari १३७२४३ Bengali ১৩৭২৪৩ Tamil ௧௩௭௨௪௩ Thai ๑๓๗๒๔๓ Tibetan ༡༣༧༢༤༣ Khmer ១៣៧២៤៣ Lao ໑໓໗໒໔໓ Burmese ၁၃၇၂၄၃

Also seen as

Unicode codepoint
𡠛
CJK Unified Ideograph-2181B
U+2181B
Other letter (Lo)

UTF-8 encoding: F0 A1 A0 9B (4 bytes).

Hex color
#02181B
RGB(2, 24, 27)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.24.27.

Address
0.2.24.27
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.24.27

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 137,243 and was likely granted around 1872.

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

Position in π

The digit sequence 137243 first appears in π at position 401,199 of the decimal expansion (the 401,199ordinal-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.

Related reading

  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.