142,472
142,472 is a composite number, even.
142,472 (one hundred forty-two thousand four hundred seventy-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 11 × 1,619. Its proper divisors sum to 149,128, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22C88.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 448
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 274,241
- Recamán's sequence
- a(223,472) = 142,472
- Square (n²)
- 20,298,270,784
- Cube (n³)
- 2,891,935,235,138,048
- Divisor count
- 16
- σ(n) — sum of divisors
- 291,600
- φ(n) — Euler's totient
- 64,720
- Sum of prime factors
- 1,636
Primality
Prime factorization: 2 3 × 11 × 1619
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,472 = [377; (2, 5, 94, 5, 2, 754)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand four hundred seventy-two
- Ordinal
- 142472nd
- Binary
- 100010110010001000
- Octal
- 426210
- Hexadecimal
- 0x22C88
- Base64
- AiyI
- One's complement
- 4,294,824,823 (32-bit)
- Scientific notation
- 1.42472 × 10⁵
- As a duration
- 142,472 s = 1 day, 15 hours, 34 minutes, 32 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμβυοβʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋣·𝋬
- Chinese
- 一十四萬二千四百七十二
- Chinese (financial)
- 壹拾肆萬貳仟肆佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142472, here are decompositions:
- 3 + 142469 = 142472
- 19 + 142453 = 142472
- 103 + 142369 = 142472
- 241 + 142231 = 142472
- 283 + 142189 = 142472
- 313 + 142159 = 142472
- 349 + 142123 = 142472
- 373 + 142099 = 142472
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B2 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.136.
- Address
- 0.2.44.136
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.136
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 142,472 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 142472 first appears in π at position 139,228 of the decimal expansion (the 139,228ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.