147,842
147,842 is a composite number, even.
147,842 (one hundred forty-seven thousand eight hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 29 × 2,549. Written other ways, in hexadecimal, 0x24182.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 1,792
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 248,741
- Recamán's sequence
- a(212,732) = 147,842
- Square (n²)
- 21,857,256,964
- Cube (n³)
- 3,231,420,584,071,688
- Divisor count
- 8
- σ(n) — sum of divisors
- 229,500
- φ(n) — Euler's totient
- 71,344
- Sum of prime factors
- 2,580
Primality
Prime factorization: 2 × 29 × 2549
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√147,842 = [384; (1, 1, 109, 2, 1, 3, 1, 14, 1, 9, 1, 8, 2, 7, 1, 2, 2, 2, 1, 1, 3, 3, 1, 1, …)]
Period length 43 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-seven thousand eight hundred forty-two
- Ordinal
- 147842nd
- Binary
- 100100000110000010
- Octal
- 440602
- Hexadecimal
- 0x24182
- Base64
- AkGC
- One's complement
- 4,294,819,453 (32-bit)
- Scientific notation
- 1.47842 × 10⁵
- As a duration
- 147,842 s = 1 day, 17 hours, 4 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμζωμβʹ
- Mayan (base 20)
- 𝋲·𝋩·𝋬·𝋢
- Chinese
- 一十四萬七千八百四十二
- Chinese (financial)
- 壹拾肆萬柒仟捌佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 147842, here are decompositions:
- 31 + 147811 = 147842
- 43 + 147799 = 147842
- 73 + 147769 = 147842
- 103 + 147739 = 147842
- 139 + 147703 = 147842
- 181 + 147661 = 147842
- 229 + 147613 = 147842
- 271 + 147571 = 147842
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 86 82 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.65.130.
- Address
- 0.2.65.130
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.65.130
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 147,842 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 147842 first appears in π at position 875,981 of the decimal expansion (the 875,981ordinal-suffix:st 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.