556,400
556,400 is a composite number, even.
556,400 (five hundred fifty-six thousand four hundred) is an even 6-digit number. It is a composite number with 60 divisors, and factors as 2⁴ × 5² × 13 × 107. Its proper divisors sum to 896,632, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x87D70.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 4,655
- Square (n²)
- 309,580,960,000
- Cube (n³)
- 172,250,846,144,000,000
- Divisor count
- 60
- σ(n) — sum of divisors
- 1,453,032
- φ(n) — Euler's totient
- 203,520
- Sum of prime factors
- 138
Primality
Prime factorization: 2 4 × 5 2 × 13 × 107
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√556,400 = [745; (1, 11, 1, 6, 4, 1, 1, 1, 7, 5, 1, 58, 1, 5, 7, 1, 1, 1, 4, 6, 1, 11, 1, 1490)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- five hundred fifty-six thousand four hundred
- Ordinal
- 556400th
- Binary
- 10000111110101110000
- Octal
- 2076560
- Hexadecimal
- 0x87D70
- Base64
- CH1w
- One's complement
- 4,294,410,895 (32-bit)
- Scientific notation
- 5.564 × 10⁵
- As a duration
- 556,400 s = 6 days, 10 hours, 33 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵φνϛυʹ
- Chinese
- 五十五萬六千四百
- Chinese (financial)
- 伍拾伍萬陸仟肆佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 556400, here are decompositions:
- 73 + 556327 = 556400
- 79 + 556321 = 556400
- 127 + 556273 = 556400
- 139 + 556261 = 556400
- 157 + 556243 = 556400
- 181 + 556219 = 556400
- 223 + 556177 = 556400
- 241 + 556159 = 556400
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.125.112.
- Address
- 0.8.125.112
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.125.112
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 556,400 and was likely granted around 1895.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.