105,142
105,142 is a composite number, even.
105,142 (one hundred five thousand one hundred forty-two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 52,571. Written other ways, in hexadecimal, 0x19AB6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 241,501
- Recamán's sequence
- a(90,799) = 105,142
- Square (n²)
- 11,054,840,164
- Cube (n³)
- 1,162,328,004,523,288
- Divisor count
- 4
- σ(n) — sum of divisors
- 157,716
- φ(n) — Euler's totient
- 52,570
- Sum of prime factors
- 52,573
Primality
Prime factorization: 2 × 52571
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√105,142 = [324; (3, 1, 9, 1, 1, 5, 4, 1, 1, 1, 13, 6, 2, 10, 1, 1, 7, 1, 8, 1, 16, 1, 1, 1, …)]
Representations
- In words
- one hundred five thousand one hundred forty-two
- Ordinal
- 105142nd
- Binary
- 11001101010110110
- Octal
- 315266
- Hexadecimal
- 0x19AB6
- Base64
- AZq2
- One's complement
- 4,294,862,153 (32-bit)
- Scientific notation
- 1.05142 × 10⁵
- As a duration
- 105,142 s = 1 day, 5 hours, 12 minutes, 22 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρερμβʹ
- Mayan (base 20)
- 𝋭·𝋢·𝋱·𝋢
- Chinese
- 一十萬五千一百四十二
- Chinese (financial)
- 壹拾萬伍仟壹佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 105142, here are decompositions:
- 5 + 105137 = 105142
- 71 + 105071 = 105142
- 251 + 104891 = 105142
- 263 + 104879 = 105142
- 293 + 104849 = 105142
- 311 + 104831 = 105142
- 353 + 104789 = 105142
- 383 + 104759 = 105142
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.154.182.
- Address
- 0.1.154.182
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.154.182
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 105,142 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 105142 first appears in π at position 54,422 of the decimal expansion (the 54,422ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.