144,920
144,920 is a composite number, even.
144,920 (one hundred forty-four thousand nine hundred twenty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 3,623. Its proper divisors sum to 181,240, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x23618.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 29,441
- Recamán's sequence
- a(218,576) = 144,920
- Square (n²)
- 21,001,806,400
- Cube (n³)
- 3,043,581,783,488,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 326,160
- φ(n) — Euler's totient
- 57,952
- Sum of prime factors
- 3,634
Primality
Prime factorization: 2 3 × 5 × 3623
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√144,920 = [380; (1, 2, 6, 4, 2, 1, 7, 3, 10, 2, 2, 9, 1, 1, 1, 1, 2, 4, 1, 6, 1, 1, 37, 1, …)]
Period length 46 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-four thousand nine hundred twenty
- Ordinal
- 144920th
- Binary
- 100011011000011000
- Octal
- 433030
- Hexadecimal
- 0x23618
- Base64
- AjYY
- One's complement
- 4,294,822,375 (32-bit)
- Scientific notation
- 1.4492 × 10⁵
- As a duration
- 144,920 s = 1 day, 16 hours, 15 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρμδϡκʹ
- Mayan (base 20)
- 𝋲·𝋢·𝋦·𝋠
- Chinese
- 一十四萬四千九百二十
- Chinese (financial)
- 壹拾肆萬肆仟玖佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 144920, here are decompositions:
- 3 + 144917 = 144920
- 31 + 144889 = 144920
- 37 + 144883 = 144920
- 73 + 144847 = 144920
- 103 + 144817 = 144920
- 157 + 144763 = 144920
- 163 + 144757 = 144920
- 211 + 144709 = 144920
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A3 98 98 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.54.24.
- Address
- 0.2.54.24
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.54.24
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 144,920 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 144920 first appears in π at position 656,818 of the decimal expansion (the 656,818ordinal-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.