Integer Profile

1,621,661

23 × 70507

Prime factors, divisor sums, positional representations and sequence properties for 1,621,661. The prime factorization is 23 × 70507.

Number of positive divisors: 4. Showing the recorded part of the sequence: 176.

DeficientOddComposite

Arithmetic properties

Positive divisors: 4
Divisor sum: 1,692,192
Proper-divisor sum: 70,531
Digit sum: 23
Digital root: 5

Number bases

Decimal: 1621661
Binary: 110001011111010011101 (21 bits)
Octal: 0o6137235
Hexadecimal: 0x18BE9D

Divisor catalog (4)

12370,5071,621,661

Showing 4 of 4.

Collatz trajectory (176 steps)

Even: n → n/2; Odd: n → 3n + 1

1,621,6614,864,9842,432,4921,216,246608,1231,824,370912,1852,736,5561,368,278684,1392,052,4181,026,2093,078,6281,539,314769,6572,308,9721,154,486577,2431,731,730865,8652,597,5961,298,798649,3991,948,198974,0992,922,2981,461,1494,383,4482,191,7241,095,862547,9311,643,794821,8972,465,6921,232,846616,4231,849,270924,6352,773,9061,386,9534,160,8602,080,4301,040,2153,120,6461,560,3234,680,9702,340,4857,021,4563,510,7281,755,364877,682438,8411,316,524658,262329,131987,394493,6971,481,092740,546370,273

Showing 60 of 60.

Prime factorization

Factorization: 23 × 70507
Distinct prime factors: 2
Perfect square: No
Parity: Odd