143,720
143,720 is a composite number, even.
143,720 (one hundred forty-three thousand seven hundred twenty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 3,593. Its proper divisors sum to 179,740, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x23168.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 27,341
- Recamán's sequence
- a(220,976) = 143,720
- Square (n²)
- 20,655,438,400
- Cube (n³)
- 2,968,599,606,848,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 323,460
- φ(n) — Euler's totient
- 57,472
- Sum of prime factors
- 3,604
Primality
Prime factorization: 2 3 × 5 × 3593
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√143,720 = [379; (9, 1, 1, 2, 10, 3, 1, 1, 7, 2, 2, 3, 24, 6, 13, 1, 1, 1, 1, 1, 2, 1, 1, 4, …)]
Representations
- In words
- one hundred forty-three thousand seven hundred twenty
- Ordinal
- 143720th
- Binary
- 100011000101101000
- Octal
- 430550
- Hexadecimal
- 0x23168
- Base64
- AjFo
- One's complement
- 4,294,823,575 (32-bit)
- Scientific notation
- 1.4372 × 10⁵
- As a duration
- 143,720 s = 1 day, 15 hours, 55 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρμγψκʹ
- Mayan (base 20)
- 𝋱·𝋳·𝋦·𝋠
- Chinese
- 一十四萬三千七百二十
- Chinese (financial)
- 壹拾肆萬參仟柒佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 143720, here are decompositions:
- 43 + 143677 = 143720
- 67 + 143653 = 143720
- 103 + 143617 = 143720
- 127 + 143593 = 143720
- 151 + 143569 = 143720
- 193 + 143527 = 143720
- 211 + 143509 = 143720
- 277 + 143443 = 143720
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A3 85 A8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.49.104.
- Address
- 0.2.49.104
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.49.104
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 143,720 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 143720 first appears in π at position 322,205 of the decimal expansion (the 322,205ordinal-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.