143,240
143,240 is a composite number, even.
143,240 (one hundred forty-three thousand two hundred forty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 3,581. Its proper divisors sum to 179,140, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22F88.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 42,341
- Recamán's sequence
- a(221,936) = 143,240
- Square (n²)
- 20,517,697,600
- Cube (n³)
- 2,938,955,004,224,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 322,380
- φ(n) — Euler's totient
- 57,280
- Sum of prime factors
- 3,592
Primality
Prime factorization: 2 3 × 5 × 3581
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√143,240 = [378; (2, 8, 189, 8, 2, 756)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-three thousand two hundred forty
- Ordinal
- 143240th
- Binary
- 100010111110001000
- Octal
- 427610
- Hexadecimal
- 0x22F88
- Base64
- Ai+I
- One's complement
- 4,294,824,055 (32-bit)
- Scientific notation
- 1.4324 × 10⁵
- As a duration
- 143,240 s = 1 day, 15 hours, 47 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμγσμʹ
- Mayan (base 20)
- 𝋱·𝋲·𝋢·𝋠
- Chinese
- 一十四萬三千二百四十
- Chinese (financial)
- 壹拾肆萬參仟貳佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 143240, here are decompositions:
- 43 + 143197 = 143240
- 103 + 143137 = 143240
- 127 + 143113 = 143240
- 271 + 142969 = 143240
- 277 + 142963 = 143240
- 337 + 142903 = 143240
- 367 + 142873 = 143240
- 373 + 142867 = 143240
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 BE 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.47.136.
- Address
- 0.2.47.136
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.47.136
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 143,240 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 143240 first appears in π at position 959,441 of the decimal expansion (the 959,441ordinal-suffix:st 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.