142,021
142,021 is a composite number, odd.
142,021 (one hundred forty-two thousand twenty-one) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 11 × 12,911. Written other ways, in hexadecimal, 0x22AC5.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 120,241
- Recamán's sequence
- a(484,785) = 142,021
- Square (n²)
- 20,169,964,441
- Cube (n³)
- 2,864,558,519,875,261
- Divisor count
- 4
- σ(n) — sum of divisors
- 154,944
- φ(n) — Euler's totient
- 129,100
- Sum of prime factors
- 12,922
Primality
Prime factorization: 11 × 12911
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,021 = [376; (1, 5, 1, 49, 2, 1, 1, 3, 1, 1, 2, 2, 1, 23, 1, 1, 1, 1, 4, 4, 2, 1, 5, 1, …)]
Period length 52 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand twenty-one
- Ordinal
- 142021st
- Binary
- 100010101011000101
- Octal
- 425305
- Hexadecimal
- 0x22AC5
- Base64
- AirF
- One's complement
- 4,294,825,274 (32-bit)
- Scientific notation
- 1.42021 × 10⁵
- As a duration
- 142,021 s = 1 day, 15 hours, 27 minutes, 1 second
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρμβκαʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋡·𝋡
- Chinese
- 一十四萬二千零二十一
- Chinese (financial)
- 壹拾肆萬貳仟零貳拾壹
Also seen as
UTF-8 encoding: F0 A2 AB 85 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.42.197.
- Address
- 0.2.42.197
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.42.197
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 142,021 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 142021 first appears in π at position 589,215 of the decimal expansion (the 589,215ordinal-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.