142,121
142,121 is a composite number, odd.
142,121 (one hundred forty-two thousand one hundred twenty-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 7 × 79 × 257. Written other ways, in hexadecimal, 0x22B29.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 16
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 121,241
- Recamán's sequence
- a(484,585) = 142,121
- Square (n²)
- 20,198,378,641
- Cube (n³)
- 2,870,613,770,837,561
- Divisor count
- 8
- σ(n) — sum of divisors
- 165,120
- φ(n) — Euler's totient
- 119,808
- Sum of prime factors
- 343
Primality
Prime factorization: 7 × 79 × 257
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,121 = [376; (1, 93, 4, 46, 1, 6, 1, 22, 1, 2, 5, 11, 1, 1, 2, 5, 1, 5, 21, 2, 1, 2, 3, 1, …)]
Representations
- In words
- one hundred forty-two thousand one hundred twenty-one
- Ordinal
- 142121st
- Binary
- 100010101100101001
- Octal
- 425451
- Hexadecimal
- 0x22B29
- Base64
- Aisp
- One's complement
- 4,294,825,174 (32-bit)
- Scientific notation
- 1.42121 × 10⁵
- As a duration
- 142,121 s = 1 day, 15 hours, 28 minutes, 41 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρμβρκαʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋦·𝋡
- Chinese
- 一十四萬二千一百二十一
- Chinese (financial)
- 壹拾肆萬貳仟壹佰貳拾壹
Also seen as
UTF-8 encoding: F0 A2 AC A9 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.41.
- Address
- 0.2.43.41
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.41
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 142,121 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.