142,145
142,145 is a composite number, odd.
142,145 (one hundred forty-two thousand one hundred forty-five) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 5 × 28,429. Written other ways, in hexadecimal, 0x22B41.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 160
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 541,241
- Recamán's sequence
- a(39,602) = 142,145
- Square (n²)
- 20,205,201,025
- Cube (n³)
- 2,872,068,299,698,625
- Divisor count
- 4
- σ(n) — sum of divisors
- 170,580
- φ(n) — Euler's totient
- 113,712
- Sum of prime factors
- 28,434
Primality
Prime factorization: 5 × 28429
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,145 = [377; (47, 7, 1, 10, 1, 9, 1, 2, 2, 1, 1, 1, 1, 23, 1, 2, 2, 4, 1, 3, 2, 1, 1, 11, …)]
Representations
- In words
- one hundred forty-two thousand one hundred forty-five
- Ordinal
- 142145th
- Binary
- 100010101101000001
- Octal
- 425501
- Hexadecimal
- 0x22B41
- Base64
- AitB
- One's complement
- 4,294,825,150 (32-bit)
- Scientific notation
- 1.42145 × 10⁵
- As a duration
- 142,145 s = 1 day, 15 hours, 29 minutes, 5 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβρμεʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋧·𝋥
- Chinese
- 一十四萬二千一百四十五
- Chinese (financial)
- 壹拾肆萬貳仟壹佰肆拾伍
Also seen as
UTF-8 encoding: F0 A2 AD 81 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.65.
- Address
- 0.2.43.65
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.65
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 142,145 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 142145 first appears in π at position 683,070 of the decimal expansion (the 683,070ordinal-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.