470,730
470,730 is a composite number, even.
470,730 (four hundred seventy thousand seven hundred thirty) is an even 6-digit number. It is a composite number with 64 divisors, and factors as 2 × 3 × 5 × 13 × 17 × 71. Its proper divisors sum to 835,638, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x72ECA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 37,074
- Recamán's sequence
- a(135,556) = 470,730
- Square (n²)
- 221,586,732,900
- Cube (n³)
- 104,307,522,778,017,000
- Divisor count
- 64
- σ(n) — sum of divisors
- 1,306,368
- φ(n) — Euler's totient
- 107,520
- Sum of prime factors
- 111
Primality
Prime factorization: 2 × 3 × 5 × 13 × 17 × 71
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√470,730 = [686; (10, 4, 5, 1, 2, 1, 1, 2, 52, 2, 1, 1, 2, 1, 5, 4, 10, 1372)]
Period length 18 — the block in parentheses repeats forever.
Representations
- In words
- four hundred seventy thousand seven hundred thirty
- Ordinal
- 470730th
- Binary
- 1110010111011001010
- Octal
- 1627312
- Hexadecimal
- 0x72ECA
- Base64
- By7K
- One's complement
- 4,294,496,565 (32-bit)
- Scientific notation
- 4.7073 × 10⁵
- As a duration
- 470,730 s = 5 days, 10 hours, 45 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆
- Greek (Milesian)
- ͵υοψλʹ
- Chinese
- 四十七萬零七百三十
- Chinese (financial)
- 肆拾柒萬零柒佰參拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 470730, here are decompositions:
- 11 + 470719 = 470730
- 19 + 470711 = 470730
- 41 + 470689 = 470730
- 61 + 470669 = 470730
- 67 + 470663 = 470730
- 79 + 470651 = 470730
- 83 + 470647 = 470730
- 103 + 470627 = 470730
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.46.202.
- Address
- 0.7.46.202
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.46.202
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 470,730 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 470730 first appears in π at position 204,046 of the decimal expansion (the 204,046ordinal-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°.