142,123
142,123 is a prime, odd.
142,123 (one hundred forty-two thousand one hundred twenty-three) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x22B2B.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 48
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 321,241
- Recamán's sequence
- a(484,581) = 142,123
- Square (n²)
- 20,198,947,129
- Cube (n³)
- 2,870,734,962,814,867
- Divisor count
- 2
- σ(n) — sum of divisors
- 142,124
- φ(n) — Euler's totient
- 142,122
Primality
142,123 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,123 = [376; (1, 124, 1, 1, 1, 83, 9, 13, 1, 5, 1, 2, 1, 8, 1, 1, 3, 5, 2, 1, 10, 1, 1, 3, …)]
Representations
- In words
- one hundred forty-two thousand one hundred twenty-three
- Ordinal
- 142123rd
- Binary
- 100010101100101011
- Octal
- 425453
- Hexadecimal
- 0x22B2B
- Base64
- Aisr
- One's complement
- 4,294,825,172 (32-bit)
- Scientific notation
- 1.42123 × 10⁵
- As a duration
- 142,123 s = 1 day, 15 hours, 28 minutes, 43 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβρκγʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋦·𝋣
- Chinese
- 一十四萬二千一百二十三
- Chinese (financial)
- 壹拾肆萬貳仟壹佰貳拾參
Also seen as
UTF-8 encoding: F0 A2 AC AB (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.43.
- Address
- 0.2.43.43
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.43
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 142,123 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 142123 first appears in π at position 332,778 of the decimal expansion (the 332,778ordinal-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
- 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.