142,028
142,028 is a composite number, even.
142,028 (one hundred forty-two thousand twenty-eight) is an even 6-digit number. It is a composite number with 6 divisors, and factors as 2² × 35,507. Written other ways, in hexadecimal, 0x22ACC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 820,241
- Recamán's sequence
- a(484,771) = 142,028
- Square (n²)
- 20,171,952,784
- Cube (n³)
- 2,864,982,110,005,952
- Divisor count
- 6
- σ(n) — sum of divisors
- 248,556
- φ(n) — Euler's totient
- 71,012
- Sum of prime factors
- 35,511
Primality
Prime factorization: 2 2 × 35507
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,028 = [376; (1, 6, 2, 6, 2, 4, 2, 1, 32, 12, 3, 14, 5, 1, 6, 2, 2, 2, 1, 7, 1, 3, 4, 1, …)]
Representations
- In words
- one hundred forty-two thousand twenty-eight
- Ordinal
- 142028th
- Binary
- 100010101011001100
- Octal
- 425314
- Hexadecimal
- 0x22ACC
- Base64
- AirM
- One's complement
- 4,294,825,267 (32-bit)
- Scientific notation
- 1.42028 × 10⁵
- As a duration
- 142,028 s = 1 day, 15 hours, 27 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβκηʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋡·𝋨
- Chinese
- 一十四萬二千零二十八
- Chinese (financial)
- 壹拾肆萬貳仟零貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142028, here are decompositions:
- 37 + 141991 = 142028
- 67 + 141961 = 142028
- 97 + 141931 = 142028
- 157 + 141871 = 142028
- 199 + 141829 = 142028
- 331 + 141697 = 142028
- 349 + 141679 = 142028
- 379 + 141649 = 142028
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AB 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.42.204.
- Address
- 0.2.42.204
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.42.204
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 142,028 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 142028 first appears in π at position 867,193 of the decimal expansion (the 867,193ordinal-suffix:rd 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.