123,142
123,142 is a composite number, even.
123,142 (one hundred twenty-three thousand one hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 23 × 2,677. Written other ways, in hexadecimal, 0x1E106.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 48
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 241,321
- Square (n²)
- 15,163,952,164
- Cube (n³)
- 1,867,319,397,379,288
- Divisor count
- 8
- σ(n) — sum of divisors
- 192,816
- φ(n) — Euler's totient
- 58,872
- Sum of prime factors
- 2,702
Primality
Prime factorization: 2 × 23 × 2677
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√123,142 = [350; (1, 10, 1, 8, 1, 2, 3, 3, 1, 1, 1, 233, 3, 3, 1, 1, 1, 2, 1, 1, 3, 3, 2, 1, …)]
Representations
- In words
- one hundred twenty-three thousand one hundred forty-two
- Ordinal
- 123142nd
- Binary
- 11110000100000110
- Octal
- 360406
- Hexadecimal
- 0x1E106
- Base64
- AeEG
- One's complement
- 4,294,844,153 (32-bit)
- Scientific notation
- 1.23142 × 10⁵
- As a duration
- 123,142 s = 1 day, 10 hours, 12 minutes, 22 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρκγρμβʹ
- Mayan (base 20)
- 𝋯·𝋧·𝋱·𝋢
- Chinese
- 一十二萬三千一百四十二
- Chinese (financial)
- 壹拾貳萬參仟壹佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 123142, here are decompositions:
- 29 + 123113 = 123142
- 59 + 123083 = 123142
- 83 + 123059 = 123142
- 179 + 122963 = 123142
- 251 + 122891 = 123142
- 281 + 122861 = 123142
- 293 + 122849 = 123142
- 353 + 122789 = 123142
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9E 84 86 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.225.6.
- Address
- 0.1.225.6
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.225.6
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 123,142 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 123142 first appears in π at position 347,795 of the decimal expansion (the 347,795ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.