Integer Profile

638,378

2 × 13 × 43 × 571

Prime factors, divisor sums, positional representations and sequence properties for 638,378. The prime factorization is 2 × 13 × 43 × 571.

Number of positive divisors: 16. Showing the recorded part of the sequence: 172.

DeficientEvenComposite

Divisor catalog (16)

12132643865595711,1181,1427,42314,84624,55349,106319,189638,378

Showing 16 of 16.

Collatz trajectory (172 steps)

Even: n → n/2; Odd: n → 3n + 1

638,378319,189957,568478,784239,392119,69659,84829,92414,9627,48122,44411,2225,61116,8348,41725,25212,6266,31318,9409,4704,73514,2067,10321,31010,65531,96615,98347,95023,97571,92635,963107,89053,945161,83680,91840,459121,37860,689182,06891,03445,517136,55268,27634,13817,06951,20825,60412,8026,40119,2049,6024,80114,4047,2023,60110,8045,4022,7018,1044,052

Showing 60 of 60.

Prime factorization

Factorization: 2 × 13 × 43 × 571
Distinct prime factors: 4
Perfect square: No
Parity: Even

Arithmetic properties

Positive divisors: 16
Divisor sum: 1,057,056
Proper-divisor sum: 418,678
Digit sum: 35
Digital root: 8

Number bases

Decimal: 638378
Binary: 10011011110110101010 (20 bits)
Octal: 0o2336652
Hexadecimal: 0x9BDAA