142,988
142,988 is a composite number, even.
142,988 (one hundred forty-two thousand nine hundred eighty-eight) is an even 6-digit number. It is a composite number with 6 divisors, and factors as 2² × 35,747. Written other ways, in hexadecimal, 0x22E8C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 32
- Digit product
- 4,608
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 889,241
- Recamán's sequence
- a(222,440) = 142,988
- Square (n²)
- 20,445,568,144
- Cube (n³)
- 2,923,470,897,774,272
- Divisor count
- 6
- σ(n) — sum of divisors
- 250,236
- φ(n) — Euler's totient
- 71,492
- Sum of prime factors
- 35,751
Primality
Prime factorization: 2 2 × 35747
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,988 = [378; (7, 3, 1, 2, 3, 2, 3, 1, 1, 9, 1, 3, 1, 10, 3, 13, 1, 17, 1, 1, 15, 1, 1, 2, …)]
Representations
- In words
- one hundred forty-two thousand nine hundred eighty-eight
- Ordinal
- 142988th
- Binary
- 100010111010001100
- Octal
- 427214
- Hexadecimal
- 0x22E8C
- Base64
- Ai6M
- One's complement
- 4,294,824,307 (32-bit)
- Scientific notation
- 1.42988 × 10⁵
- As a duration
- 142,988 s = 1 day, 15 hours, 43 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβϡπηʹ
- Mayan (base 20)
- 𝋱·𝋱·𝋩·𝋨
- Chinese
- 一十四萬二千九百八十八
- Chinese (financial)
- 壹拾肆萬貳仟玖佰捌拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142988, here are decompositions:
- 7 + 142981 = 142988
- 19 + 142969 = 142988
- 151 + 142837 = 142988
- 199 + 142789 = 142988
- 229 + 142759 = 142988
- 277 + 142711 = 142988
- 331 + 142657 = 142988
- 379 + 142609 = 142988
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 BA 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.140.
- Address
- 0.2.46.140
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.46.140
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 142,988 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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.