142,280
142,280 is a composite number, even.
142,280 (one hundred forty-two thousand two hundred eighty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 3,557. Its proper divisors sum to 177,940, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22BC8.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 82,241
- Recamán's sequence
- a(39,872) = 142,280
- Square (n²)
- 20,243,598,400
- Cube (n³)
- 2,880,259,180,352,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 320,220
- φ(n) — Euler's totient
- 56,896
- Sum of prime factors
- 3,568
Primality
Prime factorization: 2 3 × 5 × 3557
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,280 = [377; (4, 1, 187, 1, 4, 754)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand two hundred eighty
- Ordinal
- 142280th
- Binary
- 100010101111001000
- Octal
- 425710
- Hexadecimal
- 0x22BC8
- Base64
- AivI
- One's complement
- 4,294,825,015 (32-bit)
- Scientific notation
- 1.4228 × 10⁵
- As a duration
- 142,280 s = 1 day, 15 hours, 31 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμβσπʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋮·𝋠
- Chinese
- 一十四萬二千二百八十
- Chinese (financial)
- 壹拾肆萬貳仟貳佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142280, here are decompositions:
- 43 + 142237 = 142280
- 97 + 142183 = 142280
- 157 + 142123 = 142280
- 181 + 142099 = 142280
- 223 + 142057 = 142280
- 241 + 142039 = 142280
- 349 + 141931 = 142280
- 373 + 141907 = 142280
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AF 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.200.
- Address
- 0.2.43.200
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.200
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 142,280 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 142280 first appears in π at position 899,019 of the decimal expansion (the 899,019ordinal-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.