142,921
142,921 is a composite number, odd.
142,921 (one hundred forty-two thousand nine hundred twenty-one) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 131 × 1,091. Written other ways, in hexadecimal, 0x22E49.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 144
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 129,241
- Recamán's sequence
- a(222,574) = 142,921
- Square (n²)
- 20,426,412,241
- Cube (n³)
- 2,919,363,263,895,961
- Divisor count
- 4
- σ(n) — sum of divisors
- 144,144
- φ(n) — Euler's totient
- 141,700
- Sum of prime factors
- 1,222
Primality
Prime factorization: 131 × 1091
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,921 = [378; (20, 2, 3, 3, 1, 1, 1, 6, 1, 1, 3, 1, 1, 29, 1, 2, 6, 1, 13, 1, 25, 7, 6, 6, …)]
Representations
- In words
- one hundred forty-two thousand nine hundred twenty-one
- Ordinal
- 142921st
- Binary
- 100010111001001001
- Octal
- 427111
- Hexadecimal
- 0x22E49
- Base64
- Ai5J
- One's complement
- 4,294,824,374 (32-bit)
- Scientific notation
- 1.42921 × 10⁵
- As a duration
- 142,921 s = 1 day, 15 hours, 42 minutes, 1 second
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρμβϡκαʹ
- Mayan (base 20)
- 𝋱·𝋱·𝋦·𝋡
- Chinese
- 一十四萬二千九百二十一
- Chinese (financial)
- 壹拾肆萬貳仟玖佰貳拾壹
Also seen as
UTF-8 encoding: F0 A2 B9 89 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.73.
- Address
- 0.2.46.73
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.46.73
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 142,921 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.