1,321,975

5² × 52879

1,321,975 factors as 5^2 × 52879. Its 6 positive divisors give a proper-divisor sum of 317,305, so this integer is deficient. The Collatz stopping time is 124 steps.

Prime Factor Structure

Factorization String 5^2 × 52879

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 1,639,280

Proper Divisor Sum 317,305

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #1321961 ← → #1321981

Radix Representation

Decimal	1321975
Binary	101000010101111110111 (21 bits)
Octal	0o5025767
Hexadecimal	0x142BF7

Divisor Catalog (6)

1 5 25 52,879 264,395 1,321,975

Collatz Trajectory (124 steps to reach 1)

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

1,321,975 3,965,926 1,982,963 5,948,890 2,974,445 8,923,336 4,461,668 2,230,834 1,115,417 3,346,252 1,673,126 836,563 2,509,690 1,254,845 3,764,536 1,882,268 941,134 470,567 1,411,702 705,851 2,117,554 1,058,777 3,176,332 1,588,166 794,083 2,382,250 1,191,125 3,573,376 1,786,688 893,344 446,672 223,336 111,668 55,834 27,917 83,752 41,876 20,938 10,469 31,408 15,704 7,852 3,926 1,963 5,890 2,945 8,836 4,418 2,209 6,628 3,314 1,657 4,972 2,486 1,243 3,730 1,865 5,596 2,798 1,399

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