155,137
155,137 is a prime, odd.
155,137 (one hundred fifty-five thousand one hundred thirty-seven) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x25E01.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 525
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 731,551
- Recamán's sequence
- a(477,845) = 155,137
- Square (n²)
- 24,067,488,769
- Cube (n³)
- 3,733,758,005,156,353
- Divisor count
- 2
- σ(n) — sum of divisors
- 155,138
- φ(n) — Euler's totient
- 155,136
Primality
155,137 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√155,137 = [393; (1, 6, 1, 22, 1, 261, 1, 1, 1, 1, 1, 70, 1, 86, 1, 1, 5, 1, 1, 23, 3, 28, 1, 5, …)]
Representations
- In words
- one hundred fifty-five thousand one hundred thirty-seven
- Ordinal
- 155137th
- Binary
- 100101111000000001
- Octal
- 457001
- Hexadecimal
- 0x25E01
- Base64
- Al4B
- One's complement
- 4,294,812,158 (32-bit)
- Scientific notation
- 1.55137 × 10⁵
- As a duration
- 155,137 s = 1 day, 19 hours, 5 minutes, 37 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρνερλζʹ
- Mayan (base 20)
- 𝋳·𝋧·𝋰·𝋱
- Chinese
- 一十五萬五千一百三十七
- Chinese (financial)
- 壹拾伍萬伍仟壹佰參拾柒
Also seen as
UTF-8 encoding: F0 A5 B8 81 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.94.1.
- Address
- 0.2.94.1
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.94.1
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 155,137 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
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.