1,328,021

53 × 25057

1,328,021 factors as 53 × 25057. Its 4 positive divisors give a proper-divisor sum of 25,111, so this integer is deficient. The Collatz stopping time is 93 steps.

Prime Factor Structure

Factorization String 53 × 25057

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,353,132

Proper Divisor Sum 25,111

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #1328017 ← → #1328051

Radix Representation

Decimal	1328021
Binary	101000100001110010101 (21 bits)
Octal	0o5041625
Hexadecimal	0x144395

Divisor Catalog (4)

1 53 25,057 1,328,021

Collatz Trajectory (93 steps to reach 1)

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

1,328,021 3,984,064 1,992,032 996,016 498,008 249,004 124,502 62,251 186,754 93,377 280,132 140,066 70,033 210,100 105,050 52,525 157,576 78,788 39,394 19,697 59,092 29,546 14,773 44,320 22,160 11,080 5,540 2,770 1,385 4,156 2,078 1,039 3,118 1,559 4,678 2,339 7,018 3,509 10,528 5,264 2,632 1,316 658 329 988 494 247 742 371 1,114 557 1,672 836 418 209 628 314 157 472 236

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