987,102
987,102 is a composite number, even.
987,102 (nine hundred eighty-seven thousand one hundred two) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2 × 3² × 29 × 31 × 61. Its proper divisors sum to 1,334,178, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF0FDE.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 27
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 201,789
- Square (n²)
- 974,370,358,404
- Cube (n³)
- 961,802,929,521,305,208
- Divisor count
- 48
- σ(n) — sum of divisors
- 2,321,280
- φ(n) — Euler's totient
- 302,400
- Sum of prime factors
- 129
Primality
Prime factorization: 2 × 3 2 × 29 × 31 × 61
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√987,102 = [993; (1, 1, 7, 1, 4, 2, 1, 2, 26, 2, 12, 11, 1, 2, 9, 1, 2, 1, 9, 2, 1, 11, 12, 2, …)]
Period length 34 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred eighty-seven thousand one hundred two
- Ordinal
- 987102nd
- Binary
- 11110000111111011110
- Octal
- 3607736
- Hexadecimal
- 0xF0FDE
- Base64
- Dw/e
- One's complement
- 4,293,980,193 (32-bit)
- Scientific notation
- 9.87102 × 10⁵
- As a duration
- 987,102 s = 11 days, 10 hours, 11 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓏺𓏺
- Greek (Milesian)
- ͵ϡπζρβʹ
- Chinese
- 九十八萬七千一百零二
- Chinese (financial)
- 玖拾捌萬柒仟壹佰零貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 987102, here are decompositions:
- 5 + 987097 = 987102
- 13 + 987089 = 987102
- 19 + 987083 = 987102
- 23 + 987079 = 987102
- 41 + 987061 = 987102
- 59 + 987043 = 987102
- 73 + 987029 = 987102
- 79 + 987023 = 987102
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.15.222.
- Address
- 0.15.15.222
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.15.222
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 987,102 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 987102 first appears in π at position 903,978 of the decimal expansion (the 903,978ordinal-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°.