990,961
990,961 is a prime, odd.
990,961 (nine hundred ninety thousand nine hundred sixty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xF1EF1.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 34
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 169,099
- Flips to (rotate 180°)
- 196,066
- Square (n²)
- 982,003,703,521
- Cube (n³)
- 973,127,372,044,873,681
- Divisor count
- 2
- σ(n) — sum of divisors
- 990,962
- φ(n) — Euler's totient
- 990,960
Primality
990,961 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√990,961 = [995; (2, 7, 1, 9, 13, 1, 4, 1, 1, 1, 1, 30, 44, 4, 1, 3, 35, 1, 14, 1, 1, 2, 1, 1, …)]
Representations
- In words
- nine hundred ninety thousand nine hundred sixty-one
- Ordinal
- 990961st
- Binary
- 11110001111011110001
- Octal
- 3617361
- Hexadecimal
- 0xF1EF1
- Base64
- Dx7x
- One's complement
- 4,293,976,334 (32-bit)
- Scientific notation
- 9.90961 × 10⁵
- As a duration
- 990,961 s = 11 days, 11 hours, 16 minutes, 1 second
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ϡϟϡξαʹ
- Chinese
- 九十九萬零九百六十一
- Chinese (financial)
- 玖拾玖萬零玖佰陸拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.15.30.241.
- Address
- 0.15.30.241
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.30.241
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 990,961 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 990961 first appears in π at position 560,964 of the decimal expansion (the 560,964ordinal-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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.