139,813
139,813 is a prime, odd.
139,813 (one hundred thirty-nine thousand eight hundred thirteen) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x22225.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 648
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 318,931
- Recamán's sequence
- a(489,201) = 139,813
- Square (n²)
- 19,547,674,969
- Cube (n³)
- 2,733,019,080,440,797
- Divisor count
- 2
- σ(n) — sum of divisors
- 139,814
- φ(n) — Euler's totient
- 139,812
Primality
139,813 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,813 = [373; (1, 10, 1, 6, 1, 3, 1, 4, 1, 6, 1, 2, 1, 1, 1, 9, 13, 62, 4, 8, 1, 1, 1, 7, …)]
Representations
- In words
- one hundred thirty-nine thousand eight hundred thirteen
- Ordinal
- 139813th
- Binary
- 100010001000100101
- Octal
- 421045
- Hexadecimal
- 0x22225
- Base64
- AiIl
- One's complement
- 4,294,827,482 (32-bit)
- Scientific notation
- 1.39813 × 10⁵
- As a duration
- 139,813 s = 1 day, 14 hours, 50 minutes, 13 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλθωιγʹ
- Mayan (base 20)
- 𝋱·𝋩·𝋪·𝋭
- Chinese
- 一十三萬九千八百一十三
- Chinese (financial)
- 壹拾參萬玖仟捌佰壹拾參
Also seen as
UTF-8 encoding: F0 A2 88 A5 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.34.37.
- Address
- 0.2.34.37
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.34.37
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 139,813 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
- 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.