990,748
990,748 is a composite number, even.
990,748 (nine hundred ninety thousand seven hundred forty-eight) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 11² × 23 × 89. Its proper divisors sum to 1,020,212, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF1E1C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 37
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 847,099
- Square (n²)
- 981,581,599,504
- Cube (n³)
- 972,500,006,545,388,992
- Divisor count
- 36
- σ(n) — sum of divisors
- 2,010,960
- φ(n) — Euler's totient
- 425,920
- Sum of prime factors
- 138
Primality
Prime factorization: 2 2 × 11 2 × 23 × 89
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√990,748 = [995; (2, 1, 3, 21, 7, 1, 1, 10, 1, 2, 2, 54, 1, 6, 1, 3, 4, 5, 8, 1, 1, 2, 1, 2, …)]
Representations
- In words
- nine hundred ninety thousand seven hundred forty-eight
- Ordinal
- 990748th
- Binary
- 11110001111000011100
- Octal
- 3617034
- Hexadecimal
- 0xF1E1C
- Base64
- Dx4c
- One's complement
- 4,293,976,547 (32-bit)
- Scientific notation
- 9.90748 × 10⁵
- As a duration
- 990,748 s = 11 days, 11 hours, 12 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟψμηʹ
- Chinese
- 九十九萬零七百四十八
- Chinese (financial)
- 玖拾玖萬零柒佰肆拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 990748, here are decompositions:
- 29 + 990719 = 990748
- 41 + 990707 = 990748
- 149 + 990599 = 990748
- 251 + 990497 = 990748
- 359 + 990389 = 990748
- 389 + 990359 = 990748
- 419 + 990329 = 990748
- 461 + 990287 = 990748
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.30.28.
- Address
- 0.15.30.28
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.30.28
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 990,748 and was likely granted around 1911.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 990748 first appears in π at position 571,915 of the decimal expansion (the 571,915ordinal-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°.