478,740
478,740 is a composite number, even.
478,740 (four hundred seventy-eight thousand seven hundred forty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 3 × 5 × 79 × 101. Its proper divisors sum to 892,140, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x74E14.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 30
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 47,874
- Square (n²)
- 229,191,987,600
- Cube (n³)
- 109,723,372,143,624,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 1,370,880
- φ(n) — Euler's totient
- 124,800
- Sum of prime factors
- 192
Primality
Prime factorization: 2 2 × 3 × 5 × 79 × 101
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√478,740 = [691; (1, 10, 6, 4, 2, 1, 1, 2, 1, 2, 3, 2, 19, 18, 6, 2, 1, 1, 1, 1, 1, 85, 1, 6, …)]
Representations
- In words
- four hundred seventy-eight thousand seven hundred forty
- Ordinal
- 478740th
- Binary
- 1110100111000010100
- Octal
- 1647024
- Hexadecimal
- 0x74E14
- Base64
- B04U
- One's complement
- 4,294,488,555 (32-bit)
- Scientific notation
- 4.7874 × 10⁵
- As a duration
- 478,740 s = 5 days, 12 hours, 59 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵υοηψμʹ
- Chinese
- 四十七萬八千七百四十
- Chinese (financial)
- 肆拾柒萬捌仟柒佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 478740, here are decompositions:
- 11 + 478729 = 478740
- 13 + 478727 = 478740
- 29 + 478711 = 478740
- 43 + 478697 = 478740
- 61 + 478679 = 478740
- 89 + 478651 = 478740
- 103 + 478637 = 478740
- 109 + 478631 = 478740
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.78.20.
- Address
- 0.7.78.20
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.78.20
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 478,740 and was likely granted around 1892.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 478740 first appears in π at position 159,609 of the decimal expansion (the 159,609ordinal-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°.