987,448
987,448 is a composite number, even.
987,448 (nine hundred eighty-seven thousand four hundred forty-eight) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2³ × 7² × 11 × 229. Its proper divisors sum to 1,372,352, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF1138.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 40
- Digit product
- 64,512
- Digital root
- 4
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 844,789
- Square (n²)
- 975,053,552,704
- Cube (n³)
- 962,814,680,510,459,392
- Divisor count
- 48
- σ(n) — sum of divisors
- 2,359,800
- φ(n) — Euler's totient
- 383,040
- Sum of prime factors
- 260
Primality
Prime factorization: 2 3 × 7 2 × 11 × 229
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√987,448 = [993; (1, 2, 2, 1, 1, 1, 2, 4, 7, 1, 11, 45, 11, 1, 7, 4, 2, 1, 1, 1, 2, 2, 1, 1986)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred eighty-seven thousand four hundred forty-eight
- Ordinal
- 987448th
- Binary
- 11110001000100111000
- Octal
- 3610470
- Hexadecimal
- 0xF1138
- Base64
- DxE4
- One's complement
- 4,293,979,847 (32-bit)
- Scientific notation
- 9.87448 × 10⁵
- As a duration
- 987,448 s = 11 days, 10 hours, 17 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡπζυμηʹ
- Chinese
- 九十八萬七千四百四十八
- Chinese (financial)
- 玖拾捌萬柒仟肆佰肆拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 987448, here are decompositions:
- 149 + 987299 = 987448
- 197 + 987251 = 987448
- 239 + 987209 = 987448
- 257 + 987191 = 987448
- 347 + 987101 = 987448
- 359 + 987089 = 987448
- 419 + 987029 = 987448
- 467 + 986981 = 987448
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.17.56.
- Address
- 0.15.17.56
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.17.56
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 987,448 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 987448 first appears in π at position 660,012 of the decimal expansion (the 660,012ordinal-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°.