Integer Profile

1,991,626

2 × 7 × 13 × 31 × 353

Prime factors, divisor sums, positional representations and sequence properties for 1,991,626. The prime factorization is 2 × 7 × 13 × 31 × 353.

Number of positive divisors: 32. Showing the recorded part of the sequence: 122.

DeficientEvenComposite

Divisor catalog (32)

1271314263162911822173534034347068062,4712,8214,5894,9425,6429,17810,94321,88632,12364,24676,601142,259153,202284,518995,8131,991,626

Showing 32 of 32.

Collatz trajectory (122 steps)

Even: n → n/2; Odd: n → 3n + 1

1,991,626995,8132,987,4401,493,720746,860373,430186,715560,146280,073840,220420,110210,055630,166315,083945,250472,6251,417,876708,938354,4691,063,408531,704265,852132,92666,463199,39099,695299,086149,543448,630224,315672,946336,4731,009,420504,710252,355757,066378,5331,135,600567,800283,900141,95070,975212,926106,463319,390159,695479,086239,543718,630359,3151,077,946538,9731,616,920808,460404,230202,115606,346303,173909,520454,760

Showing 60 of 60.

Prime factorization

Factorization: 2 × 7 × 13 × 31 × 353
Distinct prime factors: 5
Perfect square: No
Parity: Even

Arithmetic properties

Positive divisors: 32
Divisor sum: 3,806,208
Proper-divisor sum: 1,814,582
Digit sum: 34
Digital root: 7

Number bases

Decimal: 1991626
Binary: 111100110001111001010 (21 bits)
Octal: 0o7461712
Hexadecimal: 0x1E63CA