188,042
188,042 is a composite number, even.
188,042 (one hundred eighty-eight thousand forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 167 × 563. Written other ways, in hexadecimal, 0x2DE8A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 240,881
- Recamán's sequence
- a(169,796) = 188,042
- Square (n²)
- 35,359,793,764
- Cube (n³)
- 6,649,126,338,970,088
- Divisor count
- 8
- σ(n) — sum of divisors
- 284,256
- φ(n) — Euler's totient
- 93,292
- Sum of prime factors
- 732
Primality
Prime factorization: 2 × 167 × 563
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√188,042 = [433; (1, 1, 1, 3, 4, 2, 32, 1, 10, 123, 1, 4, 7, 6, 1, 2, 4, 2, 2, 2, 6, 17, 1, 1, …)]
Representations
- In words
- one hundred eighty-eight thousand forty-two
- Ordinal
- 188042nd
- Binary
- 101101111010001010
- Octal
- 557212
- Hexadecimal
- 0x2DE8A
- Base64
- At6K
- One's complement
- 4,294,779,253 (32-bit)
- Scientific notation
- 1.88042 × 10⁵
- As a duration
- 188,042 s = 2 days, 4 hours, 14 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρπημβʹ
- Chinese
- 十八萬八千零四十二
- Chinese (financial)
- 壹拾捌萬捌仟零肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 188042, here are decompositions:
- 13 + 188029 = 188042
- 31 + 188011 = 188042
- 79 + 187963 = 188042
- 181 + 187861 = 188042
- 199 + 187843 = 188042
- 331 + 187711 = 188042
- 373 + 187669 = 188042
- 409 + 187633 = 188042
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 AD BA 8A (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.222.138.
- Address
- 0.2.222.138
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.222.138
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 188,042 and was likely granted around 1875.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 188042 first appears in π at position 612,522 of the decimal expansion (the 612,522ordinal-suffix:nd 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°.