123,997
123,997 is a prime, odd.
123,997 (one hundred twenty-three thousand nine hundred ninety-seven) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x1E45D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 31
- Digit product
- 3,402
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 799,321
- Recamán's sequence
- a(238,170) = 123,997
- Square (n²)
- 15,375,256,009
- Cube (n³)
- 1,906,485,619,347,973
- Divisor count
- 2
- σ(n) — sum of divisors
- 123,998
- φ(n) — Euler's totient
- 123,996
Primality
123,997 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√123,997 = [352; (7, 1, 1, 3, 175, 1, 3, 1, 1, 1, 1, 3, 1, 175, 3, 1, 1, 7, 704)]
Period length 19 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-three thousand nine hundred ninety-seven
- Ordinal
- 123997th
- Binary
- 11110010001011101
- Octal
- 362135
- Hexadecimal
- 0x1E45D
- Base64
- AeRd
- One's complement
- 4,294,843,298 (32-bit)
- Scientific notation
- 1.23997 × 10⁵
- As a duration
- 123,997 s = 1 day, 10 hours, 26 minutes, 37 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκγϡϟζʹ
- Mayan (base 20)
- 𝋯·𝋩·𝋳·𝋱
- Chinese
- 一十二萬三千九百九十七
- Chinese (financial)
- 壹拾貳萬參仟玖佰玖拾柒
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.1.228.93.
- Address
- 0.1.228.93
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.228.93
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 123,997 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
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.