988,920
988,920 is a composite number, even.
988,920 (nine hundred eighty-eight thousand nine hundred twenty) is an even 6-digit number. It is a composite number with 96 divisors, and factors as 2³ × 3² × 5 × 41 × 67. Its proper divisors sum to 2,352,600, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF16F8.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 36
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 29,889
- Square (n²)
- 977,962,766,400
- Cube (n³)
- 967,126,938,948,288,000
- Divisor count
- 96
- σ(n) — sum of divisors
- 3,341,520
- φ(n) — Euler's totient
- 253,440
- Sum of prime factors
- 125
Primality
Prime factorization: 2 3 × 3 2 × 5 × 41 × 67
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√988,920 = [994; (2, 4, 99, 4, 2, 1988)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred eighty-eight thousand nine hundred twenty
- Ordinal
- 988920th
- Binary
- 11110001011011111000
- Octal
- 3613370
- Hexadecimal
- 0xF16F8
- Base64
- Dxb4
- One's complement
- 4,293,978,375 (32-bit)
- Scientific notation
- 9.8892 × 10⁵
- As a duration
- 988,920 s = 11 days, 10 hours, 42 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ϡπηϡκʹ
- Chinese
- 九十八萬八千九百二十
- Chinese (financial)
- 玖拾捌萬捌仟玖佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 988920, here are decompositions:
- 11 + 988909 = 988920
- 19 + 988901 = 988920
- 43 + 988877 = 988920
- 59 + 988861 = 988920
- 61 + 988859 = 988920
- 71 + 988849 = 988920
- 83 + 988837 = 988920
- 131 + 988789 = 988920
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.22.248.
- Address
- 0.15.22.248
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.22.248
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 988,920 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 988920 first appears in π at position 472,217 of the decimal expansion (the 472,217ordinal-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°.