142,400
142,400 is a composite number, even.
142,400 (one hundred forty-two thousand four hundred) is an even 6-digit number. It is a composite number with 42 divisors, and factors as 2⁶ × 5² × 89. Its proper divisors sum to 211,930, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22C40.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 4,241
- Recamán's sequence
- a(40,112) = 142,400
- Square (n²)
- 20,277,760,000
- Cube (n³)
- 2,887,553,024,000,000
- Divisor count
- 42
- σ(n) — sum of divisors
- 354,330
- φ(n) — Euler's totient
- 56,320
- Sum of prime factors
- 111
Primality
Prime factorization: 2 6 × 5 2 × 89
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,400 = [377; (2, 1, 3, 1, 1, 1, 1, 1, 3, 1, 2, 754)]
Period length 12 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand four hundred
- Ordinal
- 142400th
- Binary
- 100010110001000000
- Octal
- 426100
- Hexadecimal
- 0x22C40
- Base64
- AixA
- One's complement
- 4,294,824,895 (32-bit)
- Scientific notation
- 1.424 × 10⁵
- As a duration
- 142,400 s = 1 day, 15 hours, 33 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ρμβυʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋠·𝋠
- Chinese
- 一十四萬二千四百
- Chinese (financial)
- 壹拾肆萬貳仟肆佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142400, here are decompositions:
- 19 + 142381 = 142400
- 31 + 142369 = 142400
- 43 + 142357 = 142400
- 73 + 142327 = 142400
- 103 + 142297 = 142400
- 163 + 142237 = 142400
- 211 + 142189 = 142400
- 241 + 142159 = 142400
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B1 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.64.
- Address
- 0.2.44.64
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.64
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 142,400 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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.