142,180
142,180 is a composite number, even.
142,180 (one hundred forty-two thousand one hundred eighty) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 7,109. Its proper divisors sum to 156,440, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22B64.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 81,241
- Recamán's sequence
- a(39,672) = 142,180
- Square (n²)
- 20,215,152,400
- Cube (n³)
- 2,874,190,368,232,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 298,620
- φ(n) — Euler's totient
- 56,864
- Sum of prime factors
- 7,118
Primality
Prime factorization: 2 2 × 5 × 7109
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,180 = [377; (14, 1, 3, 1, 1, 1, 67, 1, 10, 1, 3, 1, 18, 1, 1, 5, 1, 2, 1, 1, 3, 3, 2, 2, …)]
Representations
- In words
- one hundred forty-two thousand one hundred eighty
- Ordinal
- 142180th
- Binary
- 100010101101100100
- Octal
- 425544
- Hexadecimal
- 0x22B64
- Base64
- Aitk
- One's complement
- 4,294,825,115 (32-bit)
- Scientific notation
- 1.4218 × 10⁵
- As a duration
- 142,180 s = 1 day, 15 hours, 29 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμβρπʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋩·𝋠
- Chinese
- 一十四萬二千一百八十
- Chinese (financial)
- 壹拾肆萬貳仟壹佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142180, here are decompositions:
- 11 + 142169 = 142180
- 23 + 142157 = 142180
- 29 + 142151 = 142180
- 83 + 142097 = 142180
- 113 + 142067 = 142180
- 131 + 142049 = 142180
- 149 + 142031 = 142180
- 173 + 142007 = 142180
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AD A4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.100.
- Address
- 0.2.43.100
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.100
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 142,180 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 142180 first appears in π at position 249,440 of the decimal expansion (the 249,440ordinal-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.