479,990
479,990 is a composite number, even.
479,990 (four hundred seventy-nine thousand nine hundred ninety) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 7 × 6,857. Its proper divisors sum to 507,562, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x752F6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 38
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 99,974
- Square (n²)
- 230,390,400,100
- Cube (n³)
- 110,585,088,143,999,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 987,552
- φ(n) — Euler's totient
- 164,544
- Sum of prime factors
- 6,871
Primality
Prime factorization: 2 × 5 × 7 × 6857
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√479,990 = [692; (1, 4, 2, 1, 5, 1, 3, 8, 2, 1, 7, 1, 2, 125, 1, 1, 1, 1, 1, 2, 6, 1, 1, 2, …)]
Representations
- In words
- four hundred seventy-nine thousand nine hundred ninety
- Ordinal
- 479990th
- Binary
- 1110101001011110110
- Octal
- 1651366
- Hexadecimal
- 0x752F6
- Base64
- B1L2
- One's complement
- 4,294,487,305 (32-bit)
- Scientific notation
- 4.7999 × 10⁵
- As a duration
- 479,990 s = 5 days, 13 hours, 19 minutes, 50 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵υοθϡϟʹ
- Chinese
- 四十七萬九千九百九十
- Chinese (financial)
- 肆拾柒萬玖仟玖佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 479990, here are decompositions:
- 19 + 479971 = 479990
- 37 + 479953 = 479990
- 109 + 479881 = 479990
- 151 + 479839 = 479990
- 157 + 479833 = 479990
- 193 + 479797 = 479990
- 229 + 479761 = 479990
- 241 + 479749 = 479990
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.82.246.
- Address
- 0.7.82.246
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.82.246
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 479,990 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 479990 first appears in π at position 66,521 of the decimal expansion (the 66,521ordinal-suffix:st 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°.