142,240
142,240 is a composite number, even.
142,240 (one hundred forty-two thousand two hundred forty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2⁵ × 5 × 7 × 127. Its proper divisors sum to 244,832, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22BA0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 42,241
- Recamán's sequence
- a(39,792) = 142,240
- Square (n²)
- 20,232,217,600
- Cube (n³)
- 2,877,830,631,424,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 387,072
- φ(n) — Euler's totient
- 48,384
- Sum of prime factors
- 149
Primality
Prime factorization: 2 5 × 5 × 7 × 127
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,240 = [377; (6, 1, 3, 1, 6, 754)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand two hundred forty
- Ordinal
- 142240th
- Binary
- 100010101110100000
- Octal
- 425640
- Hexadecimal
- 0x22BA0
- Base64
- Aiug
- One's complement
- 4,294,825,055 (32-bit)
- Scientific notation
- 1.4224 × 10⁵
- As a duration
- 142,240 s = 1 day, 15 hours, 30 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμβσμʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋬·𝋠
- Chinese
- 一十四萬二千二百四十
- Chinese (financial)
- 壹拾肆萬貳仟貳佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142240, here are decompositions:
- 3 + 142237 = 142240
- 17 + 142223 = 142240
- 23 + 142217 = 142240
- 29 + 142211 = 142240
- 47 + 142193 = 142240
- 71 + 142169 = 142240
- 83 + 142157 = 142240
- 89 + 142151 = 142240
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AE A0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.160.
- Address
- 0.2.43.160
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.160
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 142,240 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.