142,408
142,408 is a composite number, even.
142,408 (one hundred forty-two thousand four hundred eight) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 7 × 2,543. Its proper divisors sum to 162,872, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22C48.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 804,241
- Recamán's sequence
- a(40,128) = 142,408
- Square (n²)
- 20,280,038,464
- Cube (n³)
- 2,888,039,717,581,312
- Divisor count
- 16
- σ(n) — sum of divisors
- 305,280
- φ(n) — Euler's totient
- 61,008
- Sum of prime factors
- 2,556
Primality
Prime factorization: 2 3 × 7 × 2543
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,408 = [377; (2, 1, 2, 2, 1, 1, 1, 9, 1, 5, 1, 3, 2, 2, 4, 9, 10, 1, 106, 1, 10, 9, 4, 2, …)]
Period length 38 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand four hundred eight
- Ordinal
- 142408th
- Binary
- 100010110001001000
- Octal
- 426110
- Hexadecimal
- 0x22C48
- Base64
- AixI
- One's complement
- 4,294,824,887 (32-bit)
- Scientific notation
- 1.42408 × 10⁵
- As a duration
- 142,408 s = 1 day, 15 hours, 33 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβυηʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋠·𝋨
- Chinese
- 一十四萬二千四百零八
- Chinese (financial)
- 壹拾肆萬貳仟肆佰零捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142408, here are decompositions:
- 5 + 142403 = 142408
- 17 + 142391 = 142408
- 89 + 142319 = 142408
- 137 + 142271 = 142408
- 191 + 142217 = 142408
- 197 + 142211 = 142408
- 239 + 142169 = 142408
- 251 + 142157 = 142408
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B1 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.72.
- Address
- 0.2.44.72
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.72
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 142,408 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 142408 first appears in π at position 396,938 of the decimal expansion (the 396,938ordinal-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.