Integer Profile

1,221,885

3^4 × 5 × 7 × 431

Prime factors, divisor sums, positional representations and sequence properties for 1,221,885. The prime factorization is 3^4 × 5 × 7 × 431.

Number of positive divisors: 40. Showing the recorded part of the sequence: 235.

AbundantOddComposite

Prime factorization

Factorization: 3^4 × 5 × 7 × 431
Distinct prime factors: 4
Perfect square: No
Parity: Odd

Arithmetic properties

Positive divisors: 40
Divisor sum: 2,509,056
Proper-divisor sum: 1,287,171
Digit sum: 27
Digital root: 9

Number bases

Decimal: 1221885
Binary: 100101010010011111101 (21 bits)
Octal: 0o4522375
Hexadecimal: 0x12A4FD

Divisor catalog (40)

13579152127354563811051351893154054315679451,2932,1552,8353,0173,8796,4659,05111,63715,08519,39527,15334,91145,25558,18581,459135,765174,555244,377407,2951,221,885

Showing 40 of 40.

Collatz trajectory (235 steps)

Even: n → n/2; Odd: n → 3n + 1

1,221,8853,665,6561,832,828916,414458,2071,374,622687,3112,061,9341,030,9673,092,9021,546,4514,639,3542,319,6776,959,0323,479,5161,739,758869,8792,609,6381,304,8193,914,4581,957,2295,871,6882,935,8441,467,922733,9612,201,8841,100,942550,4711,651,414825,7072,477,1221,238,5613,715,6841,857,842928,9212,786,7641,393,382696,6912,090,0741,045,0373,135,1121,567,556783,778391,8891,175,668587,834293,917881,752440,876220,438110,219330,658165,329495,988247,994123,997371,992185,99692,99846,499

Showing 60 of 60.