147,742
147,742 is a composite number, even.
147,742 (one hundred forty-seven thousand seven hundred forty-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 7 × 61 × 173. Written other ways, in hexadecimal, 0x2411E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 1,568
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 247,741
- Recamán's sequence
- a(212,932) = 147,742
- Square (n²)
- 21,827,698,564
- Cube (n³)
- 3,224,867,841,242,488
- Divisor count
- 16
- σ(n) — sum of divisors
- 258,912
- φ(n) — Euler's totient
- 61,920
- Sum of prime factors
- 243
Primality
Prime factorization: 2 × 7 × 61 × 173
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√147,742 = [384; (2, 1, 2, 5, 4, 4, 3, 4, 2, 2, 5, 6, 5, 1, 15, 1, 1, 12, 1, 34, 59, 9, 2, 9, …)]
Period length 46 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-seven thousand seven hundred forty-two
- Ordinal
- 147742nd
- Binary
- 100100000100011110
- Octal
- 440436
- Hexadecimal
- 0x2411E
- Base64
- AkEe
- One's complement
- 4,294,819,553 (32-bit)
- Scientific notation
- 1.47742 × 10⁵
- As a duration
- 147,742 s = 1 day, 17 hours, 2 minutes, 22 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμζψμβʹ
- Mayan (base 20)
- 𝋲·𝋩·𝋧·𝋢
- Chinese
- 一十四萬七千七百四十二
- Chinese (financial)
- 壹拾肆萬柒仟柒佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 147742, here are decompositions:
- 3 + 147739 = 147742
- 53 + 147689 = 147742
- 71 + 147671 = 147742
- 113 + 147629 = 147742
- 191 + 147551 = 147742
- 239 + 147503 = 147742
- 293 + 147449 = 147742
- 389 + 147353 = 147742
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 84 9E (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.65.30.
- Address
- 0.2.65.30
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.65.30
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 147,742 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 147742 first appears in π at position 541,722 of the decimal expansion (the 541,722ordinal-suffix:nd 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.