142,790
142,790 is a composite number, even.
142,790 (one hundred forty-two thousand seven hundred ninety) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 109 × 131. Written other ways, in hexadecimal, 0x22DC6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 97,241
- Recamán's sequence
- a(222,836) = 142,790
- Square (n²)
- 20,388,984,100
- Cube (n³)
- 2,911,343,039,639,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 261,360
- φ(n) — Euler's totient
- 56,160
- Sum of prime factors
- 247
Primality
Prime factorization: 2 × 5 × 109 × 131
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,790 = [377; (1, 7, 24, 3, 1, 14, 1, 2, 25, 1, 2, 1, 1, 3, 10, 2, 1, 2, 1, 9, 2, 15, 1, 20, …)]
Period length 60 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand seven hundred ninety
- Ordinal
- 142790th
- Binary
- 100010110111000110
- Octal
- 426706
- Hexadecimal
- 0x22DC6
- Base64
- Ai3G
- One's complement
- 4,294,824,505 (32-bit)
- Scientific notation
- 1.4279 × 10⁵
- As a duration
- 142,790 s = 1 day, 15 hours, 39 minutes, 50 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμβψϟʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋳·𝋪
- Chinese
- 一十四萬二千七百九十
- Chinese (financial)
- 壹拾肆萬貳仟柒佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142790, here are decompositions:
- 3 + 142787 = 142790
- 19 + 142771 = 142790
- 31 + 142759 = 142790
- 79 + 142711 = 142790
- 181 + 142609 = 142790
- 199 + 142591 = 142790
- 223 + 142567 = 142790
- 337 + 142453 = 142790
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B7 86 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.198.
- Address
- 0.2.45.198
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.45.198
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 142,790 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 142790 first appears in π at position 303,393 of the decimal expansion (the 303,393ordinal-suffix:rd 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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.