Integer Profile

661,180

2^2 × 5 × 13 × 2543

Prime factors, divisor sums, positional representations and sequence properties for 661,180. The prime factorization is 2^2 × 5 × 13 × 2543.

Number of positive divisors: 24. Showing the recorded part of the sequence: 123.

AbundantEvenComposite

Collatz trajectory (123 steps)

Even: n → n/2; Odd: n → 3n + 1

661,180330,590165,295495,886247,943743,830371,9151,115,746557,8731,673,620836,810418,4051,255,216627,608313,804156,90278,451235,354117,677353,032176,51688,25844,129132,38866,19433,09799,29249,64624,82374,47037,235111,70655,853167,56083,78041,89020,94562,83631,41815,70947,12823,56411,7825,89117,6748,83726,51213,2566,6283,3141,6574,9722,4861,2433,7301,8655,5962,7981,3994,198

Showing 60 of 60.

Prime factorization

Factorization: 2^2 × 5 × 13 × 2543
Distinct prime factors: 4
Perfect square: No
Parity: Even

Arithmetic properties

Positive divisors: 24
Divisor sum: 1,495,872
Proper-divisor sum: 834,692
Digit sum: 22
Digital root: 4

Number bases

Decimal: 661180
Binary: 10100001011010111100 (20 bits)
Octal: 0o2413274
Hexadecimal: 0xA16BC

Divisor catalog (24)

12451013202652651302602,5435,08610,17212,71525,43033,05950,86066,118132,236165,295330,590661,180

Showing 24 of 24.