149,742
149,742 is a composite number, even.
149,742 (one hundred forty-nine thousand seven hundred forty-two) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 3³ × 47 × 59. Its proper divisors sum to 195,858, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x248EE.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 27
- Digit product
- 2,016
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 247,941
- Square (n²)
- 22,422,666,564
- Cube (n³)
- 3,357,614,936,626,488
- Divisor count
- 32
- σ(n) — sum of divisors
- 345,600
- φ(n) — Euler's totient
- 48,024
- Sum of prime factors
- 117
Primality
Prime factorization: 2 × 3 3 × 47 × 59
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√149,742 = [386; (1, 27, 1, 1, 1, 85, 3, 28, 3, 85, 1, 1, 1, 27, 1, 772)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-nine thousand seven hundred forty-two
- Ordinal
- 149742nd
- Binary
- 100100100011101110
- Octal
- 444356
- Hexadecimal
- 0x248EE
- Base64
- Akju
- One's complement
- 4,294,817,553 (32-bit)
- Scientific notation
- 1.49742 × 10⁵
- As a duration
- 149,742 s = 1 day, 17 hours, 35 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμθψμβʹ
- Mayan (base 20)
- 𝋲·𝋮·𝋧·𝋢
- Chinese
- 一十四萬九千七百四十二
- Chinese (financial)
- 壹拾肆萬玖仟柒佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 149742, here are decompositions:
- 11 + 149731 = 149742
- 13 + 149729 = 149742
- 29 + 149713 = 149742
- 31 + 149711 = 149742
- 53 + 149689 = 149742
- 113 + 149629 = 149742
- 139 + 149603 = 149742
- 163 + 149579 = 149742
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 A3 AE (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.72.238.
- Address
- 0.2.72.238
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.72.238
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 149,742 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 149742 first appears in π at position 780,405 of the decimal expansion (the 780,405ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.