142,492
142,492 is a composite number, even.
142,492 (one hundred forty-two thousand four hundred ninety-two) is an even 6-digit number. It is a composite number with 18 divisors, and factors as 2² × 7² × 727. Its proper divisors sum to 147,980, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22C9C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 576
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 294,241
- Recamán's sequence
- a(223,432) = 142,492
- Square (n²)
- 20,303,970,064
- Cube (n³)
- 2,893,153,302,359,488
- Divisor count
- 18
- σ(n) — sum of divisors
- 290,472
- φ(n) — Euler's totient
- 60,984
- Sum of prime factors
- 745
Primality
Prime factorization: 2 2 × 7 2 × 727
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,492 = [377; (2, 12, 1, 2, 1, 12, 2, 754)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand four hundred ninety-two
- Ordinal
- 142492nd
- Binary
- 100010110010011100
- Octal
- 426234
- Hexadecimal
- 0x22C9C
- Base64
- Aiyc
- One's complement
- 4,294,824,803 (32-bit)
- Scientific notation
- 1.42492 × 10⁵
- As a duration
- 142,492 s = 1 day, 15 hours, 34 minutes, 52 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμβυϟβʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋤·𝋬
- Chinese
- 一十四萬二千四百九十二
- Chinese (financial)
- 壹拾肆萬貳仟肆佰玖拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142492, here are decompositions:
- 23 + 142469 = 142492
- 59 + 142433 = 142492
- 71 + 142421 = 142492
- 89 + 142403 = 142492
- 101 + 142391 = 142492
- 173 + 142319 = 142492
- 269 + 142223 = 142492
- 281 + 142211 = 142492
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B2 9C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.156.
- Address
- 0.2.44.156
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.156
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 142,492 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 142492 first appears in π at position 526,754 of the decimal expansion (the 526,754ordinal-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.