142,646
142,646 is a composite number, even.
142,646 (one hundred forty-two thousand six hundred forty-six) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 7 × 23 × 443. Written other ways, in hexadecimal, 0x22D36.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 1,152
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 646,241
- Recamán's sequence
- a(223,124) = 142,646
- Square (n²)
- 20,347,881,316
- Cube (n³)
- 2,902,543,878,202,136
- Divisor count
- 16
- σ(n) — sum of divisors
- 255,744
- φ(n) — Euler's totient
- 58,344
- Sum of prime factors
- 475
Primality
Prime factorization: 2 × 7 × 23 × 443
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,646 = [377; (1, 2, 5, 1, 2, 2, 3, 1, 4, 1, 1, 29, 1, 2, 150, 1, 2, 1, 4, 16, 4, 1, 2, 1, …)]
Period length 40 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand six hundred forty-six
- Ordinal
- 142646th
- Binary
- 100010110100110110
- Octal
- 426466
- Hexadecimal
- 0x22D36
- Base64
- Ai02
- One's complement
- 4,294,824,649 (32-bit)
- Scientific notation
- 1.42646 × 10⁵
- As a duration
- 142,646 s = 1 day, 15 hours, 37 minutes, 26 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβχμϛʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋬·𝋦
- Chinese
- 一十四萬二千六百四十六
- Chinese (financial)
- 壹拾肆萬貳仟陸佰肆拾陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142646, here are decompositions:
- 37 + 142609 = 142646
- 73 + 142573 = 142646
- 79 + 142567 = 142646
- 103 + 142543 = 142646
- 109 + 142537 = 142646
- 193 + 142453 = 142646
- 277 + 142369 = 142646
- 349 + 142297 = 142646
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B4 B6 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.54.
- Address
- 0.2.45.54
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.45.54
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 142,646 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.