142,120
142,120 is a composite number, even.
142,120 (one hundred forty-two thousand one hundred twenty) is an even 6-digit number. It is a composite number with 64 divisors, and factors as 2³ × 5 × 11 × 17 × 19. Its proper divisors sum to 246,680, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22B28.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 21,241
- Recamán's sequence
- a(484,587) = 142,120
- Square (n²)
- 20,198,094,400
- Cube (n³)
- 2,870,553,176,128,000
- Divisor count
- 64
- σ(n) — sum of divisors
- 388,800
- φ(n) — Euler's totient
- 46,080
- Sum of prime factors
- 58
Primality
Prime factorization: 2 3 × 5 × 11 × 17 × 19
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,120 = [376; (1, 82, 1, 3, 2, 8, 1, 6, 2, 1, 4, 3, 4, 1, 2, 6, 1, 8, 2, 3, 1, 82, 1, 752)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand one hundred twenty
- Ordinal
- 142120th
- Binary
- 100010101100101000
- Octal
- 425450
- Hexadecimal
- 0x22B28
- Base64
- Aiso
- One's complement
- 4,294,825,175 (32-bit)
- Scientific notation
- 1.4212 × 10⁵
- As a duration
- 142,120 s = 1 day, 15 hours, 28 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρμβρκʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋦·𝋠
- Chinese
- 一十四萬二千一百二十
- Chinese (financial)
- 壹拾肆萬貳仟壹佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142120, here are decompositions:
- 23 + 142097 = 142120
- 53 + 142067 = 142120
- 59 + 142061 = 142120
- 71 + 142049 = 142120
- 89 + 142031 = 142120
- 101 + 142019 = 142120
- 113 + 142007 = 142120
- 149 + 141971 = 142120
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AC A8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.40.
- Address
- 0.2.43.40
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.40
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 142,120 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.