Integer Profile

1,221,780

2^2 × 3 × 5 × 7 × 2909

Prime factors, divisor sums, positional representations and sequence properties for 1,221,780. The prime factorization is 2^2 × 3 × 5 × 7 × 2909.

Number of positive divisors: 48. Collatz steps to reach 1: 59.

AbundantEvenComposite

Number bases

Decimal: 1221780
Binary: 100101010010010010100 (21 bits)
Octal: 0o4522224
Hexadecimal: 0x12A494

Divisor catalog (48)

1234567101214152021283035426070841051402104202,9095,8188,72711,63614,54517,45420,36329,09034,90840,72643,63558,18061,08981,45287,270101,815122,178174,540203,630244,356305,445407,260610,8901,221,780

Showing 48 of 48.

Collatz trajectory (59 steps)

Even: n → n/2; Odd: n → 3n + 1

1,221,780610,890305,445916,336458,168229,084114,54257,271171,81485,907257,722128,861386,584193,29296,64648,323144,97072,485217,456108,72854,36427,18213,59140,77420,38761,16230,58191,74445,87222,93611,4685,7342,8678,6024,30112,9046,4523,2261,6134,8402,4201,2106051,8169084542276823411,0245122561286432168421

Showing 60 of 60.

Prime factorization

Factorization: 2^2 × 3 × 5 × 7 × 2909
Distinct prime factors: 5
Perfect square: No
Parity: Even

Arithmetic properties

Positive divisors: 48
Divisor sum: 3,911,040
Proper-divisor sum: 2,689,260
Digit sum: 21
Digital root: 3