120,121
120,121 is a prime, odd.
120,121 (one hundred twenty thousand one hundred twenty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x1D539.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 7
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 121,021
- Recamán's sequence
- a(239,854) = 120,121
- Square (n²)
- 14,429,054,641
- Cube (n³)
- 1,733,232,472,531,561
- Divisor count
- 2
- σ(n) — sum of divisors
- 120,122
- φ(n) — Euler's totient
- 120,120
Primality
120,121 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√120,121 = [346; (1, 1, 2, 2, 4, 2, 3, 9, 2, 8, 1, 3, 3, 3, 1, 4, 1, 1, 10, 8, 1, 1, 3, 12, …)]
Representations
- In words
- one hundred twenty thousand one hundred twenty-one
- Ordinal
- 120121st
- Binary
- 11101010100111001
- Octal
- 352471
- Hexadecimal
- 0x1D539
- Base64
- AdU5
- One's complement
- 4,294,847,174 (32-bit)
- Scientific notation
- 1.20121 × 10⁵
- As a duration
- 120,121 s = 1 day, 9 hours, 22 minutes, 1 second
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρκρκαʹ
- Mayan (base 20)
- 𝋯·𝋠·𝋦·𝋡
- Chinese
- 一十二萬零一百二十一
- Chinese (financial)
- 壹拾貳萬零壹佰貳拾壹
Also seen as
UTF-8 encoding: F0 9D 94 B9 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.213.57.
- Address
- 0.1.213.57
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.213.57
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 120,121 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.