Integer Profile

1,645,790

2 × 5 × 31 × 5309

Prime factors, divisor sums, positional representations and sequence properties for 1,645,790. The prime factorization is 2 × 5 × 31 × 5309.

Number of positive divisors: 16. Showing the recorded part of the sequence: 331.

DeficientEvenComposite

Divisor catalog (16)

1251031621553105,30910,61826,54553,090164,579329,158822,8951,645,790

Showing 16 of 16.

Collatz trajectory (331 steps)

Even: n → n/2; Odd: n → 3n + 1

1,645,790822,8952,468,6861,234,3433,703,0301,851,5155,554,5462,777,2738,331,8204,165,9102,082,9556,248,8663,124,4339,373,3004,686,6502,343,3257,029,9763,514,9881,757,494878,7472,636,2421,318,1213,954,3641,977,182988,5912,965,7741,482,8874,448,6622,224,3316,672,9943,336,49710,009,4925,004,7462,502,3737,507,1203,753,5601,876,780938,390469,1951,407,586703,7932,111,3801,055,690527,8451,583,536791,768395,884197,94298,971296,914148,457445,372222,686111,343334,030167,015501,046250,523751,570375,785

Showing 60 of 60.

Prime factorization

Factorization: 2 × 5 × 31 × 5309
Distinct prime factors: 4
Perfect square: No
Parity: Even

Arithmetic properties

Positive divisors: 16
Divisor sum: 3,058,560
Proper-divisor sum: 1,412,770
Digit sum: 32
Digital root: 5

Number bases

Decimal: 1645790
Binary: 110010001110011011110 (21 bits)
Octal: 0o6216336
Hexadecimal: 0x191CDE