142,009
142,009 is a composite number, odd.
142,009 (one hundred forty-two thousand nine) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 7 × 20,287. Written other ways, in hexadecimal, 0x22AB9.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 900,241
- Recamán's sequence
- a(484,809) = 142,009
- Square (n²)
- 20,166,556,081
- Cube (n³)
- 2,863,832,462,506,729
- Divisor count
- 4
- σ(n) — sum of divisors
- 162,304
- φ(n) — Euler's totient
- 121,716
- Sum of prime factors
- 20,294
Primality
Prime factorization: 7 × 20287
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,009 = [376; (1, 5, 3, 1, 1, 4, 1, 13, 1, 22, 1, 1, 1, 1, 1, 2, 1, 1, 15, 8, 4, 1, 1, 2, …)]
Representations
- In words
- one hundred forty-two thousand nine
- Ordinal
- 142009th
- Binary
- 100010101010111001
- Octal
- 425271
- Hexadecimal
- 0x22AB9
- Base64
- Aiq5
- One's complement
- 4,294,825,286 (32-bit)
- Scientific notation
- 1.42009 × 10⁵
- As a duration
- 142,009 s = 1 day, 15 hours, 26 minutes, 49 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβθʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋠·𝋩
- Chinese
- 一十四萬二千零九
- Chinese (financial)
- 壹拾肆萬貳仟零玖
Also seen as
UTF-8 encoding: F0 A2 AA B9 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.42.185.
- Address
- 0.2.42.185
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.42.185
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 142,009 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 142009 first appears in π at position 169,454 of the decimal expansion (the 169,454ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.