142,290
142,290 is a composite number, even.
142,290 (one hundred forty-two thousand two hundred ninety) is an even 6-digit number. It is a composite number with 64 divisors, and factors as 2 × 3³ × 5 × 17 × 31. Its proper divisors sum to 272,430, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22BD2.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 92,241
- Recamán's sequence
- a(39,892) = 142,290
- Square (n²)
- 20,246,444,100
- Cube (n³)
- 2,880,866,530,989,000
- Divisor count
- 64
- σ(n) — sum of divisors
- 414,720
- φ(n) — Euler's totient
- 34,560
- Sum of prime factors
- 64
Primality
Prime factorization: 2 × 3 3 × 5 × 17 × 31
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,290 = [377; (4, 1, 2, 5, 1, 7, 5, 2, 5, 1, 7, 1, 1, 1, 2, 1, 1, 83, 4, 15, 6, 1, 3, 1, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand two hundred ninety
- Ordinal
- 142290th
- Binary
- 100010101111010010
- Octal
- 425722
- Hexadecimal
- 0x22BD2
- Base64
- AivS
- One's complement
- 4,294,825,005 (32-bit)
- Scientific notation
- 1.4229 × 10⁵
- As a duration
- 142,290 s = 1 day, 15 hours, 31 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμβσϟʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋮·𝋪
- Chinese
- 一十四萬二千二百九十
- Chinese (financial)
- 壹拾肆萬貳仟貳佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142290, here are decompositions:
- 19 + 142271 = 142290
- 53 + 142237 = 142290
- 59 + 142231 = 142290
- 67 + 142223 = 142290
- 73 + 142217 = 142290
- 79 + 142211 = 142290
- 97 + 142193 = 142290
- 101 + 142189 = 142290
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AF 92 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.210.
- Address
- 0.2.43.210
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.210
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 142,290 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 142290 first appears in π at position 272,599 of the decimal expansion (the 272,599ordinal-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°.