472,840
472,840 is a composite number, even.
472,840 (four hundred seventy-two thousand eight hundred forty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 11,821. Its proper divisors sum to 591,140, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x73708.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 48,274
- Square (n²)
- 223,577,665,600
- Cube (n³)
- 105,716,463,402,304,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 1,063,980
- φ(n) — Euler's totient
- 189,120
- Sum of prime factors
- 11,832
Primality
Prime factorization: 2 3 × 5 × 11821
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√472,840 = [687; (1, 1, 1, 2, 1, 2, 3, 2, 6, 2, 9, 1, 2, 1, 1, 1, 1, 2, 1, 1, 34, 1, 2, 6, …)]
Representations
- In words
- four hundred seventy-two thousand eight hundred forty
- Ordinal
- 472840th
- Binary
- 1110011011100001000
- Octal
- 1633410
- Hexadecimal
- 0x73708
- Base64
- BzcI
- One's complement
- 4,294,494,455 (32-bit)
- Scientific notation
- 4.7284 × 10⁵
- As a duration
- 472,840 s = 5 days, 11 hours, 20 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹 𒌋𒌋 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵υοβωμʹ
- Chinese
- 四十七萬二千八百四十
- Chinese (financial)
- 肆拾柒萬貳仟捌佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 472840, here are decompositions:
- 3 + 472837 = 472840
- 23 + 472817 = 472840
- 41 + 472799 = 472840
- 47 + 472793 = 472840
- 89 + 472751 = 472840
- 131 + 472709 = 472840
- 149 + 472691 = 472840
- 197 + 472643 = 472840
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.55.8.
- Address
- 0.7.55.8
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.55.8
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 472,840 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 472840 first appears in π at position 277,227 of the decimal expansion (the 277,227ordinal-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°.