142,122
142,122 is a composite number, even.
142,122 (one hundred forty-two thousand one hundred twenty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 3 × 23,687. Its proper divisors sum to 142,134, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22B2A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 12
- Digit product
- 32
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 221,241
- Recamán's sequence
- a(484,583) = 142,122
- Square (n²)
- 20,198,662,884
- Cube (n³)
- 2,870,674,366,399,848
- Divisor count
- 8
- σ(n) — sum of divisors
- 284,256
- φ(n) — Euler's totient
- 47,372
- Sum of prime factors
- 23,692
Primality
Prime factorization: 2 × 3 × 23687
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,122 = [376; (1, 106, 1, 2, 2, 14, 1, 23, 2, 1, 1, 2, 2, 3, 18, 10, 3, 1, 1, 1, 6, 1, 3, 12, …)]
Representations
- In words
- one hundred forty-two thousand one hundred twenty-two
- Ordinal
- 142122nd
- Binary
- 100010101100101010
- Octal
- 425452
- Hexadecimal
- 0x22B2A
- Base64
- Aisq
- One's complement
- 4,294,825,173 (32-bit)
- Scientific notation
- 1.42122 × 10⁵
- As a duration
- 142,122 s = 1 day, 15 hours, 28 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμβρκβʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋦·𝋢
- Chinese
- 一十四萬二千一百二十二
- Chinese (financial)
- 壹拾肆萬貳仟壹佰貳拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142122, here are decompositions:
- 11 + 142111 = 142122
- 23 + 142099 = 142122
- 61 + 142061 = 142122
- 73 + 142049 = 142122
- 83 + 142039 = 142122
- 103 + 142019 = 142122
- 131 + 141991 = 142122
- 151 + 141971 = 142122
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AC AA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.42.
- Address
- 0.2.43.42
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.42
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 142,122 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 142122 first appears in π at position 678,013 of the decimal expansion (the 678,013ordinal-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°.