143,990
143,990 is a composite number, even.
143,990 (one hundred forty-three thousand nine hundred ninety) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2 × 5 × 7 × 11² × 17. Its proper divisors sum to 200,746, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x23276.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 99,341
- Recamán's sequence
- a(220,436) = 143,990
- Square (n²)
- 20,733,120,100
- Cube (n³)
- 2,985,361,963,199,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 344,736
- φ(n) — Euler's totient
- 42,240
- Sum of prime factors
- 53
Primality
Prime factorization: 2 × 5 × 7 × 11 2 × 17
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√143,990 = [379; (2, 5, 1, 3, 2, 1, 1, 5, 1, 2, 7, 6, 7, 2, 1, 5, 1, 1, 2, 3, 1, 5, 2, 758)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-three thousand nine hundred ninety
- Ordinal
- 143990th
- Binary
- 100011001001110110
- Octal
- 431166
- Hexadecimal
- 0x23276
- Base64
- AjJ2
- One's complement
- 4,294,823,305 (32-bit)
- Scientific notation
- 1.4399 × 10⁵
- As a duration
- 143,990 s = 1 day, 15 hours, 59 minutes, 50 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμγϡϟʹ
- Mayan (base 20)
- 𝋱·𝋳·𝋳·𝋪
- Chinese
- 一十四萬三千九百九十
- Chinese (financial)
- 壹拾肆萬參仟玖佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 143990, here are decompositions:
- 13 + 143977 = 143990
- 19 + 143971 = 143990
- 37 + 143953 = 143990
- 43 + 143947 = 143990
- 109 + 143881 = 143990
- 157 + 143833 = 143990
- 163 + 143827 = 143990
- 193 + 143797 = 143990
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A3 89 B6 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.50.118.
- Address
- 0.2.50.118
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.50.118
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 143,990 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 143990 first appears in π at position 414,588 of the decimal expansion (the 414,588ordinal-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.