137,491
137,491 is a prime, odd.
137,491 (one hundred thirty-seven thousand four hundred ninety-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x21913.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 756
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 194,731
- Square (n²)
- 18,903,775,081
- Cube (n³)
- 2,599,098,939,661,771
- Divisor count
- 2
- σ(n) — sum of divisors
- 137,492
- φ(n) — Euler's totient
- 137,490
Primality
137,491 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√137,491 = [370; (1, 3, 1, 17, 3, 2, 9, 1, 1, 2, 4, 1, 1, 15, 1, 13, 18, 1, 16, 1, 2, 2, 3, 1, …)]
Representations
- In words
- one hundred thirty-seven thousand four hundred ninety-one
- Ordinal
- 137491st
- Binary
- 100001100100010011
- Octal
- 414423
- Hexadecimal
- 0x21913
- Base64
- AhkT
- One's complement
- 4,294,829,804 (32-bit)
- Scientific notation
- 1.37491 × 10⁵
- As a duration
- 137,491 s = 1 day, 14 hours, 11 minutes, 31 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹 𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρλζυϟαʹ
- Mayan (base 20)
- 𝋱·𝋣·𝋮·𝋫
- Chinese
- 一十三萬七千四百九十一
- Chinese (financial)
- 壹拾參萬柒仟肆佰玖拾壹
Also seen as
UTF-8 encoding: F0 A1 A4 93 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.25.19.
- Address
- 0.2.25.19
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.25.19
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 137,491 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 137491 first appears in π at position 507,672 of the decimal expansion (the 507,672ordinal-suffix:nd 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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.