Integer Profile

1,661,445

3^3 × 5 × 31 × 397

Prime factors, divisor sums, positional representations and sequence properties for 1,661,445. The prime factorization is 3^3 × 5 × 31 × 397.

Number of positive divisors: 32. Showing the recorded part of the sequence: 163.

DeficientOddComposite

Collatz trajectory (163 steps)

Even: n → n/2; Odd: n → 3n + 1

1,661,4454,984,3362,492,1681,246,084623,042311,521934,564467,282233,641700,924350,462175,231525,694262,847788,542394,2711,182,814591,4071,774,222887,1112,661,3341,330,6673,992,0021,996,0015,988,0042,994,0021,497,0014,491,0042,245,5021,122,7513,368,2541,684,1275,052,3822,526,1917,578,5743,789,28711,367,8625,683,93117,051,7948,525,89725,577,69212,788,8466,394,42319,183,2709,591,63528,774,90614,387,45343,162,36021,581,18010,790,5905,395,29516,185,8868,092,94324,278,83012,139,41536,418,24618,209,12354,627,37027,313,68581,941,056

Showing 60 of 60.

Prime factorization

Factorization: 3^3 × 5 × 31 × 397
Distinct prime factors: 4
Perfect square: No
Parity: Odd

Arithmetic properties

Positive divisors: 32
Divisor sum: 3,056,640
Proper-divisor sum: 1,395,195
Digit sum: 27
Digital root: 9

Number bases

Decimal: 1661445
Binary: 110010101101000000101 (21 bits)
Octal: 0o6255005
Hexadecimal: 0x195A05

Divisor catalog (32)

135915273145931351552793974658371,1911,3951,9853,5734,1855,95510,71912,30717,86536,92153,59561,535110,763184,605332,289553,8151,661,445

Showing 32 of 32.