142,744
142,744 is a composite number, even.
142,744 (one hundred forty-two thousand seven hundred forty-four) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 7 × 2,549. Its proper divisors sum to 163,256, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22D98.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 896
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 447,241
- Recamán's sequence
- a(222,928) = 142,744
- Square (n²)
- 20,375,849,536
- Cube (n³)
- 2,908,530,266,166,784
- Divisor count
- 16
- σ(n) — sum of divisors
- 306,000
- φ(n) — Euler's totient
- 61,152
- Sum of prime factors
- 2,562
Primality
Prime factorization: 2 3 × 7 × 2549
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,744 = [377; (1, 4, 2, 1, 1, 29, 1, 1, 1, 2, 1, 1, 2, 6, 3, 2, 1, 12, 1, 1, 3, 1, 3, 1, …)]
Period length 54 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand seven hundred forty-four
- Ordinal
- 142744th
- Binary
- 100010110110011000
- Octal
- 426630
- Hexadecimal
- 0x22D98
- Base64
- Ai2Y
- One's complement
- 4,294,824,551 (32-bit)
- Scientific notation
- 1.42744 × 10⁵
- As a duration
- 142,744 s = 1 day, 15 hours, 39 minutes, 4 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβψμδʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋱·𝋤
- Chinese
- 一十四萬二千七百四十四
- Chinese (financial)
- 壹拾肆萬貳仟柒佰肆拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142744, here are decompositions:
- 11 + 142733 = 142744
- 47 + 142697 = 142744
- 71 + 142673 = 142744
- 137 + 142607 = 142744
- 191 + 142553 = 142744
- 197 + 142547 = 142744
- 311 + 142433 = 142744
- 317 + 142427 = 142744
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B6 98 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.152.
- Address
- 0.2.45.152
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.45.152
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 142,744 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 142744 first appears in π at position 328,113 of the decimal expansion (the 328,113ordinal-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.