144,731
144,731 is a prime, odd.
144,731 (one hundred forty-four thousand seven hundred thirty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x2355B.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 336
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 137,441
- Recamán's sequence
- a(218,954) = 144,731
- Square (n²)
- 20,947,062,361
- Cube (n³)
- 3,031,689,282,569,891
- Divisor count
- 2
- σ(n) — sum of divisors
- 144,732
- φ(n) — Euler's totient
- 144,730
Primality
144,731 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√144,731 = [380; (2, 3, 2, 1, 3, 7, 1, 4, 1, 2, 13, 2, 12, 2, 2, 2, 2, 2, 1, 5, 1, 2, 1, 6, …)]
Representations
- In words
- one hundred forty-four thousand seven hundred thirty-one
- Ordinal
- 144731st
- Binary
- 100011010101011011
- Octal
- 432533
- Hexadecimal
- 0x2355B
- Base64
- AjVb
- One's complement
- 4,294,822,564 (32-bit)
- Scientific notation
- 1.44731 × 10⁵
- As a duration
- 144,731 s = 1 day, 16 hours, 12 minutes, 11 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋 𒌋𒁹𒁹 𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρμδψλαʹ
- Mayan (base 20)
- 𝋲·𝋡·𝋰·𝋫
- Chinese
- 一十四萬四千七百三十一
- Chinese (financial)
- 壹拾肆萬肆仟柒佰參拾壹
Also seen as
UTF-8 encoding: F0 A3 95 9B (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.53.91.
- Address
- 0.2.53.91
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.53.91
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 144,731 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 144731 first appears in π at position 125,709 of the decimal expansion (the 125,709ordinal-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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.