142,228
142,228 is a composite number, even.
142,228 (one hundred forty-two thousand two hundred twenty-eight) is an even 6-digit number. It is a composite number with 18 divisors, and factors as 2² × 31² × 37. Written other ways, in hexadecimal, 0x22B94.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 256
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 822,241
- Recamán's sequence
- a(39,768) = 142,228
- Square (n²)
- 20,228,803,984
- Cube (n³)
- 2,877,102,333,036,352
- Divisor count
- 18
- σ(n) — sum of divisors
- 264,138
- φ(n) — Euler's totient
- 66,960
- Sum of prime factors
- 103
Primality
Prime factorization: 2 2 × 31 2 × 37
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,228 = [377; (7, 1, 1, 1, 1, 1, 1, 2, 5, 22, 1, 2, 27, 1, 1, 2, 15, 3, 5, 1, 4, 6, 1, 1, …)]
Representations
- In words
- one hundred forty-two thousand two hundred twenty-eight
- Ordinal
- 142228th
- Binary
- 100010101110010100
- Octal
- 425624
- Hexadecimal
- 0x22B94
- Base64
- AiuU
- One's complement
- 4,294,825,067 (32-bit)
- Scientific notation
- 1.42228 × 10⁵
- As a duration
- 142,228 s = 1 day, 15 hours, 30 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβσκηʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋫·𝋨
- Chinese
- 一十四萬二千二百二十八
- Chinese (financial)
- 壹拾肆萬貳仟貳佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142228, here are decompositions:
- 5 + 142223 = 142228
- 11 + 142217 = 142228
- 17 + 142211 = 142228
- 59 + 142169 = 142228
- 71 + 142157 = 142228
- 131 + 142097 = 142228
- 167 + 142061 = 142228
- 179 + 142049 = 142228
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AE 94 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.148.
- Address
- 0.2.43.148
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.148
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 142,228 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.