499,840
499,840 is a composite number, even.
499,840 (four hundred ninety-nine thousand eight hundred forty) is an even 6-digit number. It is a composite number with 64 divisors, and factors as 2⁷ × 5 × 11 × 71. Its proper divisors sum to 822,080, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x7A080.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 34
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 48,994
- Square (n²)
- 249,840,025,600
- Cube (n³)
- 124,880,038,395,904,000
- Divisor count
- 64
- σ(n) — sum of divisors
- 1,321,920
- φ(n) — Euler's totient
- 179,200
- Sum of prime factors
- 101
Primality
Prime factorization: 2 7 × 5 × 11 × 71
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√499,840 = [706; (1, 156, 9, 17, 2, 1, 8, 2, 1, 1, 3, 1, 5, 7, 2, 7, 1, 8, 1, 14, 1, 87, 2, 3, …)]
Representations
- In words
- four hundred ninety-nine thousand eight hundred forty
- Ordinal
- 499840th
- Binary
- 1111010000010000000
- Octal
- 1720200
- Hexadecimal
- 0x7A080
- Base64
- B6CA
- One's complement
- 4,294,467,455 (32-bit)
- Scientific notation
- 4.9984 × 10⁵
- As a duration
- 499,840 s = 5 days, 18 hours, 50 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵υϟθωμʹ
- Chinese
- 四十九萬九千八百四十
- Chinese (financial)
- 肆拾玖萬玖仟捌佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 499840, here are decompositions:
- 53 + 499787 = 499840
- 59 + 499781 = 499840
- 101 + 499739 = 499840
- 149 + 499691 = 499840
- 167 + 499673 = 499840
- 179 + 499661 = 499840
- 191 + 499649 = 499840
- 233 + 499607 = 499840
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.160.128.
- Address
- 0.7.160.128
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.160.128
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 499,840 and was likely granted around 1893.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 499840 first appears in π at position 867,067 of the decimal expansion (the 867,067ordinal-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°.