997,240
997,240 is a composite number, even.
997,240 (nine hundred ninety-seven thousand two hundred forty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 5 × 107 × 233. Its proper divisors sum to 1,277,240, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3778.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 31
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 42,799
- Square (n²)
- 994,487,617,600
- Cube (n³)
- 991,742,831,775,424,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 2,274,480
- φ(n) — Euler's totient
- 393,472
- Sum of prime factors
- 351
Primality
Prime factorization: 2 3 × 5 × 107 × 233
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√997,240 = [998; (1, 1, 1, 1, 1, 1, 1, 1996)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety-seven thousand two hundred forty
- Ordinal
- 997240th
- Binary
- 11110011011101111000
- Octal
- 3633570
- Hexadecimal
- 0xF3778
- Base64
- Dzd4
- One's complement
- 4,293,970,055 (32-bit)
- Scientific notation
- 9.9724 × 10⁵
- As a duration
- 997,240 s = 11 days, 13 hours, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 · 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ϡϟζσμʹ
- Chinese
- 九十九萬七千二百四十
- Chinese (financial)
- 玖拾玖萬柒仟貳佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 997240, here are decompositions:
- 89 + 997151 = 997240
- 131 + 997109 = 997240
- 137 + 997103 = 997240
- 149 + 997091 = 997240
- 197 + 997043 = 997240
- 227 + 997013 = 997240
- 239 + 997001 = 997240
- 353 + 996887 = 997240
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.55.120.
- Address
- 0.15.55.120
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.55.120
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 997,240 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 997240 first appears in π at position 258,948 of the decimal expansion (the 258,948ordinal-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°.