142,188
142,188 is a composite number, even.
142,188 (one hundred forty-two thousand one hundred eighty-eight) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 3 × 17² × 41. Its proper divisors sum to 218,844, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22B6C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 512
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 881,241
- Recamán's sequence
- a(39,688) = 142,188
- Square (n²)
- 20,217,427,344
- Cube (n³)
- 2,874,675,559,188,672
- Divisor count
- 36
- σ(n) — sum of divisors
- 361,032
- φ(n) — Euler's totient
- 43,520
- Sum of prime factors
- 82
Primality
Prime factorization: 2 2 × 3 × 17 2 × 41
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,188 = [377; (12, 1, 3, 1, 1, 3, 3, 2, 3, 3, 1, 1, 3, 1, 12, 754)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand one hundred eighty-eight
- Ordinal
- 142188th
- Binary
- 100010101101101100
- Octal
- 425554
- Hexadecimal
- 0x22B6C
- Base64
- Aits
- One's complement
- 4,294,825,107 (32-bit)
- Scientific notation
- 1.42188 × 10⁵
- As a duration
- 142,188 s = 1 day, 15 hours, 29 minutes, 48 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβρπηʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋩·𝋨
- Chinese
- 一十四萬二千一百八十八
- Chinese (financial)
- 壹拾肆萬貳仟壹佰捌拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142188, here are decompositions:
- 5 + 142183 = 142188
- 19 + 142169 = 142188
- 29 + 142159 = 142188
- 31 + 142157 = 142188
- 37 + 142151 = 142188
- 89 + 142099 = 142188
- 127 + 142061 = 142188
- 131 + 142057 = 142188
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AD AC (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.108.
- Address
- 0.2.43.108
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.108
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 142,188 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 142188 first appears in π at position 779,525 of the decimal expansion (the 779,525ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.