470,720
470,720 is a composite number, even.
470,720 (four hundred seventy thousand seven hundred twenty) is an even 6-digit number. It is a composite number with 28 divisors, and factors as 2⁶ × 5 × 1,471. Its proper divisors sum to 650,944, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x72EC0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 27,074
- Recamán's sequence
- a(135,536) = 470,720
- Square (n²)
- 221,577,318,400
- Cube (n³)
- 104,300,875,317,248,000
- Divisor count
- 28
- σ(n) — sum of divisors
- 1,121,664
- φ(n) — Euler's totient
- 188,160
- Sum of prime factors
- 1,488
Primality
Prime factorization: 2 6 × 5 × 1471
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√470,720 = [686; (11, 15, 3, 16, 1, 4, 1, 3, 44, 343, 44, 3, 1, 4, 1, 16, 3, 15, 11, 1372)]
Period length 20 — the block in parentheses repeats forever.
Representations
- In words
- four hundred seventy thousand seven hundred twenty
- Ordinal
- 470720th
- Binary
- 1110010111011000000
- Octal
- 1627300
- Hexadecimal
- 0x72EC0
- Base64
- By7A
- One's complement
- 4,294,496,575 (32-bit)
- Scientific notation
- 4.7072 × 10⁵
- As a duration
- 470,720 s = 5 days, 10 hours, 45 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵υοψκʹ
- Chinese
- 四十七萬零七百二十
- Chinese (financial)
- 肆拾柒萬零柒佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 470720, here are decompositions:
- 31 + 470689 = 470720
- 67 + 470653 = 470720
- 73 + 470647 = 470720
- 127 + 470593 = 470720
- 181 + 470539 = 470720
- 199 + 470521 = 470720
- 277 + 470443 = 470720
- 307 + 470413 = 470720
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.46.192.
- Address
- 0.7.46.192
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.46.192
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 470,720 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 470720 first appears in π at position 59,476 of the decimal expansion (the 59,476ordinal-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°.