147,972
147,972 is a composite number, even.
147,972 (one hundred forty-seven thousand nine hundred seventy-two) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 3 × 11 × 19 × 59. Its proper divisors sum to 255,228, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x24204.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 30
- Digit product
- 3,528
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 279,741
- Recamán's sequence
- a(212,472) = 147,972
- Square (n²)
- 21,895,712,784
- Cube (n³)
- 3,239,952,412,074,048
- Divisor count
- 48
- σ(n) — sum of divisors
- 403,200
- φ(n) — Euler's totient
- 41,760
- Sum of prime factors
- 96
Primality
Prime factorization: 2 2 × 3 × 11 × 19 × 59
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√147,972 = [384; (1, 2, 23, 1, 2, 2, 3, 11, 1, 2, 1, 2, 3, 1, 5, 4, 5, 1, 3, 2, 1, 2, 1, 11, …)]
Period length 32 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-seven thousand nine hundred seventy-two
- Ordinal
- 147972nd
- Binary
- 100100001000000100
- Octal
- 441004
- Hexadecimal
- 0x24204
- Base64
- AkIE
- One's complement
- 4,294,819,323 (32-bit)
- Scientific notation
- 1.47972 × 10⁵
- As a duration
- 147,972 s = 1 day, 17 hours, 6 minutes, 12 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμζϡοβʹ
- Mayan (base 20)
- 𝋲·𝋩·𝋲·𝋬
- Chinese
- 一十四萬七千九百七十二
- Chinese (financial)
- 壹拾肆萬柒仟玖佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 147972, here are decompositions:
- 23 + 147949 = 147972
- 53 + 147919 = 147972
- 109 + 147863 = 147972
- 113 + 147859 = 147972
- 173 + 147799 = 147972
- 179 + 147793 = 147972
- 193 + 147779 = 147972
- 199 + 147773 = 147972
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 88 84 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.66.4.
- Address
- 0.2.66.4
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.66.4
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 147,972 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.