142,628
142,628 is a composite number, even.
142,628 (one hundred forty-two thousand six hundred twenty-eight) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 181 × 197. Written other ways, in hexadecimal, 0x22D24.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 768
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 826,241
- Recamán's sequence
- a(223,160) = 142,628
- Square (n²)
- 20,342,746,384
- Cube (n³)
- 2,901,445,231,257,152
- Divisor count
- 12
- σ(n) — sum of divisors
- 252,252
- φ(n) — Euler's totient
- 70,560
- Sum of prime factors
- 382
Primality
Prime factorization: 2 2 × 181 × 197
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,628 = [377; (1, 1, 1, 19, 1, 2, 1, 25, 3, 2, 1, 6, 1, 3, 1, 1, 11, 4, 11, 1, 1, 3, 1, 6, …)]
Period length 36 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand six hundred twenty-eight
- Ordinal
- 142628th
- Binary
- 100010110100100100
- Octal
- 426444
- Hexadecimal
- 0x22D24
- Base64
- Ai0k
- One's complement
- 4,294,824,667 (32-bit)
- Scientific notation
- 1.42628 × 10⁵
- As a duration
- 142,628 s = 1 day, 15 hours, 37 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβχκηʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋫·𝋨
- Chinese
- 一十四萬二千六百二十八
- Chinese (financial)
- 壹拾肆萬貳仟陸佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142628, here are decompositions:
- 19 + 142609 = 142628
- 37 + 142591 = 142628
- 61 + 142567 = 142628
- 127 + 142501 = 142628
- 271 + 142357 = 142628
- 331 + 142297 = 142628
- 397 + 142231 = 142628
- 439 + 142189 = 142628
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B4 A4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.36.
- Address
- 0.2.45.36
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.45.36
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 142,628 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 142628 first appears in π at position 113,333 of the decimal expansion (the 113,333ordinal-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.