997,290
997,290 is a composite number, even.
997,290 (nine hundred ninety-seven thousand two hundred ninety) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2 × 3² × 5 × 7 × 1,583. Its proper divisors sum to 1,967,958, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF37AA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 36
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 92,799
- Square (n²)
- 994,587,344,100
- Cube (n³)
- 991,892,012,397,489,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 2,965,248
- φ(n) — Euler's totient
- 227,808
- Sum of prime factors
- 1,603
Primality
Prime factorization: 2 × 3 2 × 5 × 7 × 1583
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√997,290 = [998; (1, 1, 1, 4, 3, 1, 21, 2, 3, 24, 1, 220, 1, 24, 3, 2, 21, 1, 3, 4, 1, 1, 1, 1996)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety-seven thousand two hundred ninety
- Ordinal
- 997290th
- Binary
- 11110011011110101010
- Octal
- 3633652
- Hexadecimal
- 0xF37AA
- Base64
- Dzeq
- One's complement
- 4,293,970,005 (32-bit)
- Scientific notation
- 9.9729 × 10⁵
- As a duration
- 997,290 s = 11 days, 13 hours, 1 minute, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ϡϟζσϟʹ
- Chinese
- 九十九萬七千二百九十
- Chinese (financial)
- 玖拾玖萬柒仟貳佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 997290, here are decompositions:
- 11 + 997279 = 997290
- 17 + 997273 = 997290
- 23 + 997267 = 997290
- 31 + 997259 = 997290
- 43 + 997247 = 997290
- 71 + 997219 = 997290
- 83 + 997207 = 997290
- 89 + 997201 = 997290
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.55.170.
- Address
- 0.15.55.170
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.55.170
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 997,290 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 997290 first appears in π at position 144,246 of the decimal expansion (the 144,246ordinal-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°.