470,831
470,831 is a prime, odd.
470,831 (four hundred seventy thousand eight 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, 0x72F2F.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 138,074
- Recamán's sequence
- a(135,758) = 470,831
- Square (n²)
- 221,681,830,561
- Cube (n³)
- 104,374,677,964,866,191
- Divisor count
- 2
- σ(n) — sum of divisors
- 470,832
- φ(n) — Euler's totient
- 470,830
Primality
470,831 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√470,831 = [686; (5, 1, 5, 4, 1, 2, 2, 10, 7, 1, 1, 3, 31, 1, 1, 1, 2, 1, 1, 8, 3, 105, 4, 10, …)]
Representations
- In words
- four hundred seventy thousand eight hundred thirty-one
- Ordinal
- 470831st
- Binary
- 1110010111100101111
- Octal
- 1627457
- Hexadecimal
- 0x72F2F
- Base64
- By8v
- One's complement
- 4,294,496,464 (32-bit)
- Scientific notation
- 4.70831 × 10⁵
- As a duration
- 470,831 s = 5 days, 10 hours, 47 minutes, 11 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵υοωλαʹ
- Chinese
- 四十七萬零八百三十一
- Chinese (financial)
- 肆拾柒萬零捌佰參拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.7.47.47.
- Address
- 0.7.47.47
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.47.47
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 470,831 and was likely granted around 1891.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 470831 first appears in π at position 733,028 of the decimal expansion (the 733,028ordinal-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.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.