Integer Profile
21,224
2^3 × 7 × 379
Prime factors, divisor sums, positional representations and sequence properties for 21,224. The prime factorization is 2^3 × 7 × 379.
Number of positive divisors: 16. Collatz steps to reach 1: 30.
Prime factorization
- Factorization
- 2^3 × 7 × 379
- Distinct prime factors
- 3
- Perfect square
- No
- Parity
- Even
Arithmetic properties
- Positive divisors
- 16
- Divisor sum
- 45,600
- Proper-divisor sum
- 24,376
- Digit sum
- 11
- Digital root
- 2
Number bases
- Decimal
- 21224
- Binary
- 101001011101000 (15 bits)
- Octal
- 0o51350
- Hexadecimal
- 0x52E8
Divisor catalog (16)
124781428563797581,5162,6533,0325,30610,61221,224
Showing 16 of 16.
Collatz trajectory (30 steps)
Even: n → n/2; Odd: n → 3n + 1
21,22410,6125,3062,6537,9603,9801,9909952,9861,4934,4802,2401,120560280140703510653160804020105168421
Showing 31 of 31.
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