Integer Profile
20,385
3^3 × 5 × 151
Prime factors, divisor sums, positional representations and sequence properties for 20,385. The prime factorization is 3^3 × 5 × 151.
Number of positive divisors: 16. Showing the recorded part of the sequence: 74.
Prime factorization
- Factorization
- 3^3 × 5 × 151
- Distinct prime factors
- 3
- Perfect square
- No
- Parity
- Odd
Arithmetic properties
- Positive divisors
- 16
- Divisor sum
- 36,480
- Proper-divisor sum
- 16,095
- Digit sum
- 18
- Digital root
- 9
Number bases
- Decimal
- 20385
- Binary
- 100111110100001 (15 bits)
- Octal
- 0o47641
- Hexadecimal
- 0x4FA1
Divisor catalog (16)
13591527451351514537551,3592,2654,0776,79520,385
Showing 16 of 16.
Collatz trajectory (74 steps)
Even: n → n/2; Odd: n → 3n + 1
20,38561,15630,57815,28945,86822,93411,46734,40217,20151,60425,80212,90138,70419,3529,6764,8382,4197,2583,62910,8885,4442,7221,3614,0842,0421,0213,0641,5327663831,1505751,7268632,5901,2953,8861,9435,8302,9158,7464,37313,1206,5603,2801,640820410205616308154772321165829884422
Showing 60 of 60.
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