142,448
142,448 is a composite number, even.
142,448 (one hundred forty-two thousand four hundred forty-eight) is an even 6-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 29 × 307. Its proper divisors sum to 143,992, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22C70.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 1,024
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 844,241
- Recamán's sequence
- a(40,208) = 142,448
- Square (n²)
- 20,291,432,704
- Cube (n³)
- 2,890,474,005,819,392
- Divisor count
- 20
- σ(n) — sum of divisors
- 286,440
- φ(n) — Euler's totient
- 68,544
- Sum of prime factors
- 344
Primality
Prime factorization: 2 4 × 29 × 307
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,448 = [377; (2, 2, 1, 2, 1, 5, 1, 1, 32, 3, 1, 1, 2, 1, 1, 2, 2, 1, 4, 3, 2, 1, 1, 46, …)]
Period length 48 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand four hundred forty-eight
- Ordinal
- 142448th
- Binary
- 100010110001110000
- Octal
- 426160
- Hexadecimal
- 0x22C70
- Base64
- Aixw
- One's complement
- 4,294,824,847 (32-bit)
- Scientific notation
- 1.42448 × 10⁵
- As a duration
- 142,448 s = 1 day, 15 hours, 34 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβυμηʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋢·𝋨
- Chinese
- 一十四萬二千四百四十八
- Chinese (financial)
- 壹拾肆萬貳仟肆佰肆拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142448, here are decompositions:
- 67 + 142381 = 142448
- 79 + 142369 = 142448
- 151 + 142297 = 142448
- 211 + 142237 = 142448
- 337 + 142111 = 142448
- 349 + 142099 = 142448
- 409 + 142039 = 142448
- 457 + 141991 = 142448
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B1 B0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.112.
- Address
- 0.2.44.112
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.112
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 142,448 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 142448 first appears in π at position 40,859 of the decimal expansion (the 40,859ordinal-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.