λ
Math Directory

1,402,945

5 × 280589
Deficient Odd Composite

1,402,945 factors as 5 × 280589. Its 4 positive divisors give a proper-divisor sum of 280,595, so this integer is deficient. The Collatz stopping time is 243 steps.

Prime Factor Structure

Factorization String 5 × 280589
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,683,540
Proper Divisor Sum 280,595
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #1402943 ← → #1402957

Radix Representation

Decimal 1402945
Binary 101010110100001000001 (21 bits)
Octal 0o5264101
Hexadecimal 0x156841

Divisor Catalog (4)

1 5 280,589 1,402,945

Collatz Trajectory (243 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

1,402,945 4,208,836 2,104,418 1,052,209 3,156,628 1,578,314 789,157 2,367,472 1,183,736 591,868 295,934 147,967 443,902 221,951 665,854 332,927 998,782 499,391 1,498,174 749,087 2,247,262 1,123,631 3,370,894 1,685,447 5,056,342 2,528,171 7,584,514 3,792,257 11,376,772 5,688,386 2,844,193 8,532,580 4,266,290 2,133,145 6,399,436 3,199,718 1,599,859 4,799,578 2,399,789 7,199,368 3,599,684 1,799,842 899,921 2,699,764 1,349,882 674,941 2,024,824 1,012,412 506,206 253,103 759,310 379,655 1,138,966 569,483 1,708,450 854,225 2,562,676 1,281,338 640,669 1,922,008

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