Integer Profile

1,987,209

3^2 × 7 × 31543

Prime factors, divisor sums, positional representations and sequence properties for 1,987,209. The prime factorization is 3^2 × 7 × 31543.

Number of positive divisors: 12. Showing the recorded part of the sequence: 122.

DeficientOddComposite

Number bases

Decimal: 1987209
Binary: 111100101001010001001 (21 bits)
Octal: 0o7451211
Hexadecimal: 0x1E5289

Divisor catalog (12)

1379216331,54394,629220,801283,887662,4031,987,209

Showing 12 of 12.

Collatz trajectory (122 steps)

Even: n → n/2; Odd: n → 3n + 1

1,987,2095,961,6282,980,8141,490,4074,471,2222,235,6116,706,8343,353,41710,060,2525,030,1262,515,0637,545,1903,772,59511,317,7865,658,89316,976,6808,488,3404,244,1702,122,0856,366,2563,183,1281,591,564795,782397,8911,193,674596,8371,790,512895,256447,628223,814111,907335,722167,861503,584251,792125,89662,94831,47415,73747,21223,60611,80335,41017,70553,11626,55813,27939,83819,91959,75829,87989,63844,819134,45867,229201,688100,84450,42225,21175,634

Showing 60 of 60.

Prime factorization

Factorization: 3^2 × 7 × 31543
Distinct prime factors: 3
Perfect square: No
Parity: Odd

Arithmetic properties

Positive divisors: 12
Divisor sum: 3,280,576
Proper-divisor sum: 1,293,367
Digit sum: 36
Digital root: 9