142,949
142,949 is a prime, odd.
142,949 (one hundred forty-two thousand nine hundred forty-nine) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x22E65.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 29
- Digit product
- 2,592
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 949,241
- Recamán's sequence
- a(222,518) = 142,949
- Square (n²)
- 20,434,416,601
- Cube (n³)
- 2,921,079,418,696,349
- Divisor count
- 2
- σ(n) — sum of divisors
- 142,950
- φ(n) — Euler's totient
- 142,948
Primality
142,949 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,949 = [378; (11, 1, 1, 1, 2, 1, 1, 4, 1, 4, 1, 1, 1, 1, 1, 2, 7, 1, 5, 5, 1, 12, 1, 10, …)]
Period length 51 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand nine hundred forty-nine
- Ordinal
- 142949th
- Binary
- 100010111001100101
- Octal
- 427145
- Hexadecimal
- 0x22E65
- Base64
- Ai5l
- One's complement
- 4,294,824,346 (32-bit)
- Scientific notation
- 1.42949 × 10⁵
- As a duration
- 142,949 s = 1 day, 15 hours, 42 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβϡμθʹ
- Mayan (base 20)
- 𝋱·𝋱·𝋧·𝋩
- Chinese
- 一十四萬二千九百四十九
- Chinese (financial)
- 壹拾肆萬貳仟玖佰肆拾玖
Also seen as
UTF-8 encoding: F0 A2 B9 A5 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.101.
- Address
- 0.2.46.101
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.46.101
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 142,949 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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.