472,644
472,644 is a composite number, even.
472,644 (four hundred seventy-two thousand six hundred forty-four) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 3² × 19 × 691. Its proper divisors sum to 786,796, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x73644.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 27
- Digit product
- 5,376
- Digital root
- 9
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 446,274
- Square (n²)
- 223,392,350,736
- Cube (n³)
- 105,585,054,221,265,984
- Divisor count
- 36
- σ(n) — sum of divisors
- 1,259,440
- φ(n) — Euler's totient
- 149,040
- Sum of prime factors
- 720
Primality
Prime factorization: 2 2 × 3 2 × 19 × 691
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√472,644 = [687; (2, 27, 1, 1, 3, 1, 1, 2, 8, 2, 12, 2, 1, 1, 1, 3, 1, 16, 5, 4, 2, 1, 2, 3, …)]
Representations
- In words
- four hundred seventy-two thousand six hundred forty-four
- Ordinal
- 472644th
- Binary
- 1110011011001000100
- Octal
- 1633104
- Hexadecimal
- 0x73644
- Base64
- BzZE
- One's complement
- 4,294,494,651 (32-bit)
- Scientific notation
- 4.72644 × 10⁵
- As a duration
- 472,644 s = 5 days, 11 hours, 17 minutes, 24 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵υοβχμδʹ
- Chinese
- 四十七萬二千六百四十四
- Chinese (financial)
- 肆拾柒萬貳仟陸佰肆拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 472644, here are decompositions:
- 5 + 472639 = 472644
- 13 + 472631 = 472644
- 47 + 472597 = 472644
- 71 + 472573 = 472644
- 83 + 472561 = 472644
- 101 + 472543 = 472644
- 103 + 472541 = 472644
- 167 + 472477 = 472644
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.54.68.
- Address
- 0.7.54.68
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.54.68
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 472,644 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 472644 first appears in π at position 254,364 of the decimal expansion (the 254,364ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.