142,664
142,664 is a composite number, even.
142,664 (one hundred forty-two thousand six hundred sixty-four) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 17 × 1,049. Written other ways, in hexadecimal, 0x22D48.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 1,152
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 466,241
- Recamán's sequence
- a(223,088) = 142,664
- Square (n²)
- 20,353,016,896
- Cube (n³)
- 2,903,642,802,450,944
- Divisor count
- 16
- σ(n) — sum of divisors
- 283,500
- φ(n) — Euler's totient
- 67,072
- Sum of prime factors
- 1,072
Primality
Prime factorization: 2 3 × 17 × 1049
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,664 = [377; (1, 2, 2, 3, 2, 1, 6, 1, 1, 1, 3, 4, 1, 14, 1, 1, 1, 1, 5, 1, 2, 1, 12, 1, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand six hundred sixty-four
- Ordinal
- 142664th
- Binary
- 100010110101001000
- Octal
- 426510
- Hexadecimal
- 0x22D48
- Base64
- Ai1I
- One's complement
- 4,294,824,631 (32-bit)
- Scientific notation
- 1.42664 × 10⁵
- As a duration
- 142,664 s = 1 day, 15 hours, 37 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβχξδʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋭·𝋤
- Chinese
- 一十四萬二千六百六十四
- Chinese (financial)
- 壹拾肆萬貳仟陸佰陸拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142664, here are decompositions:
- 7 + 142657 = 142664
- 73 + 142591 = 142664
- 97 + 142567 = 142664
- 127 + 142537 = 142664
- 163 + 142501 = 142664
- 211 + 142453 = 142664
- 283 + 142381 = 142664
- 307 + 142357 = 142664
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B5 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.72.
- Address
- 0.2.45.72
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.45.72
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 142,664 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 142664 first appears in π at position 101,369 of the decimal expansion (the 101,369ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.