143,520
143,520 is a composite number, even.
143,520 (one hundred forty-three thousand five hundred twenty) is an even 6-digit number. It is a composite number with 96 divisors, and factors as 2⁵ × 3 × 5 × 13 × 23. Its proper divisors sum to 364,512, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x230A0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 25,341
- Recamán's sequence
- a(221,376) = 143,520
- Square (n²)
- 20,597,990,400
- Cube (n³)
- 2,956,223,582,208,000
- Divisor count
- 96
- σ(n) — sum of divisors
- 508,032
- φ(n) — Euler's totient
- 33,792
- Sum of prime factors
- 54
Primality
Prime factorization: 2 5 × 3 × 5 × 13 × 23
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√143,520 = [378; (1, 5, 3, 1, 4, 189, 4, 1, 3, 5, 1, 756)]
Period length 12 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-three thousand five hundred twenty
- Ordinal
- 143520th
- Binary
- 100011000010100000
- Octal
- 430240
- Hexadecimal
- 0x230A0
- Base64
- AjCg
- One's complement
- 4,294,823,775 (32-bit)
- Scientific notation
- 1.4352 × 10⁵
- As a duration
- 143,520 s = 1 day, 15 hours, 52 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρμγφκʹ
- Mayan (base 20)
- 𝋱·𝋲·𝋰·𝋠
- Chinese
- 一十四萬三千五百二十
- Chinese (financial)
- 壹拾肆萬參仟伍佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 143520, here are decompositions:
- 7 + 143513 = 143520
- 11 + 143509 = 143520
- 17 + 143503 = 143520
- 19 + 143501 = 143520
- 31 + 143489 = 143520
- 37 + 143483 = 143520
- 43 + 143477 = 143520
- 53 + 143467 = 143520
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A3 82 A0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.48.160.
- Address
- 0.2.48.160
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.48.160
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 143,520 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 143520 first appears in π at position 133,825 of the decimal expansion (the 133,825ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.