472,220
472,220 is a composite number, even.
472,220 (four hundred seventy-two thousand two hundred twenty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 7 × 3,373. Its proper divisors sum to 661,444, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x7349C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 22,274
- Square (n²)
- 222,991,728,400
- Cube (n³)
- 105,301,153,985,048,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 1,133,664
- φ(n) — Euler's totient
- 161,856
- Sum of prime factors
- 3,389
Primality
Prime factorization: 2 2 × 5 × 7 × 3373
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√472,220 = [687; (5, 2, 9, 2, 3, 4, 2, 1, 4, 2, 1, 1, 1, 2, 10, 1, 2, 2, 1, 2, 1, 1, 5, 1, …)]
Representations
- In words
- four hundred seventy-two thousand two hundred twenty
- Ordinal
- 472220th
- Binary
- 1110011010010011100
- Octal
- 1632234
- Hexadecimal
- 0x7349C
- Base64
- BzSc
- One's complement
- 4,294,495,075 (32-bit)
- Scientific notation
- 4.7222 × 10⁵
- As a duration
- 472,220 s = 5 days, 11 hours, 10 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹 𒌋 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵υοβσκʹ
- Chinese
- 四十七萬二千二百二十
- Chinese (financial)
- 肆拾柒萬貳仟貳佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 472220, here are decompositions:
- 31 + 472189 = 472220
- 61 + 472159 = 472220
- 97 + 472123 = 472220
- 109 + 472111 = 472220
- 157 + 472063 = 472220
- 163 + 472057 = 472220
- 193 + 472027 = 472220
- 223 + 471997 = 472220
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.52.156.
- Address
- 0.7.52.156
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.52.156
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 472,220 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 472220 first appears in π at position 311,292 of the decimal expansion (the 311,292ordinal-suffix:nd 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°.