137,729
137,729 is a composite number, odd.
137,729 (one hundred thirty-seven thousand seven hundred twenty-nine) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 43 × 3,203. Written other ways, in hexadecimal, 0x21A01.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 29
- Digit product
- 2,646
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 927,731
- Recamán's sequence
- a(493,369) = 137,729
- Square (n²)
- 18,969,277,441
- Cube (n³)
- 2,612,619,612,671,489
- Divisor count
- 4
- σ(n) — sum of divisors
- 140,976
- φ(n) — Euler's totient
- 134,484
- Sum of prime factors
- 3,246
Primality
Prime factorization: 43 × 3203
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√137,729 = [371; (8, 2, 3, 4, 6, 2, 1, 1, 5, 1, 38, 4, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 16, 1, …)]
Period length 46 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-seven thousand seven hundred twenty-nine
- Ordinal
- 137729th
- Binary
- 100001101000000001
- Octal
- 415001
- Hexadecimal
- 0x21A01
- Base64
- AhoB
- One's complement
- 4,294,829,566 (32-bit)
- Scientific notation
- 1.37729 × 10⁵
- As a duration
- 137,729 s = 1 day, 14 hours, 15 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλζψκθʹ
- Mayan (base 20)
- 𝋱·𝋤·𝋦·𝋩
- Chinese
- 一十三萬七千七百二十九
- Chinese (financial)
- 壹拾參萬柒仟柒佰貳拾玖
Also seen as
UTF-8 encoding: F0 A1 A8 81 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.26.1.
- Address
- 0.2.26.1
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.26.1
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 137,729 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 137729 first appears in π at position 510,630 of the decimal expansion (the 510,630ordinal-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.