1,655,240

2³ × 5 × 41381

1,655,240 factors as 2^3 × 5 × 41381. Its 16 positive divisors give a proper-divisor sum of 2,069,140, so this integer is abundant. The Collatz stopping time is 145 steps.

Prime Factor Structure

Factorization String 2^3 × 5 × 41381

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 3,724,380

Proper Divisor Sum 2,069,140

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #1655237 ← → #1655249

Radix Representation

Decimal	1655240
Binary	110010100000111001000 (21 bits)
Octal	0o6240710
Hexadecimal	0x1941C8

Divisor Catalog (16)

1 2 4 5 8 10 20 40 41,381 82,762 165,524 206,905 331,048 413,810 827,620 1,655,240

Collatz Trajectory (145 steps to reach 1)

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

1,655,240 827,620 413,810 206,905 620,716 310,358 155,179 465,538 232,769 698,308 349,154 174,577 523,732 261,866 130,933 392,800 196,400 98,200 49,100 24,550 12,275 36,826 18,413 55,240 27,620 13,810 6,905 20,716 10,358 5,179 15,538 7,769 23,308 11,654 5,827 17,482 8,741 26,224 13,112 6,556 3,278 1,639 4,918 2,459 7,378 3,689 11,068 5,534 2,767 8,302 4,151 12,454 6,227 18,682 9,341 28,024 14,012 7,006 3,503 10,510

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