Integer Profile

1,818,398

2 × 31 × 139 × 211

Prime factors, divisor sums, positional representations and sequence properties for 1,818,398. The prime factorization is 2 × 31 × 139 × 211.

Number of positive divisors: 16. Showing the recorded part of the sequence: 109.

DeficientEvenComposite

Divisor catalog (16)

1231621392112784224,3096,5418,61813,08229,32958,658909,1991,818,398

Showing 16 of 16.

Collatz trajectory (109 steps)

Even: n → n/2; Odd: n → 3n + 1

1,818,398909,1992,727,5981,363,7994,091,3982,045,6996,137,0983,068,5499,205,6484,602,8242,301,4121,150,706575,3531,726,060863,030431,5151,294,546647,2731,941,820970,910485,4551,456,366728,1832,184,5501,092,2753,276,8261,638,4134,915,2402,457,6201,228,810614,4051,843,216921,608460,804230,402115,201345,604172,80286,401259,204129,60264,801194,40497,20248,601145,80472,90236,451109,35454,677164,03282,01641,00820,50410,2525,1262,5637,6903,84511,536

Showing 60 of 60.

Prime factorization

Factorization: 2 × 31 × 139 × 211
Distinct prime factors: 4
Perfect square: No
Parity: Even

Arithmetic properties

Positive divisors: 16
Divisor sum: 2,849,280
Proper-divisor sum: 1,030,882
Digit sum: 38
Digital root: 2

Number bases

Decimal: 1818398
Binary: 110111011111100011110 (21 bits)
Octal: 0o6737436
Hexadecimal: 0x1BBF1E