3,645,878

2 × 1822939

3,645,878 factors as 2 × 1822939. Its 4 positive divisors give a proper-divisor sum of 1,822,942, so this integer is deficient. The Collatz stopping time is 84 steps.

Prime Factor Structure

Factorization String 2 × 1822939

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 5,468,820

Proper Divisor Sum 1,822,942

Digit Sum / Digital Root 41 (Root: 5)

Adjacent Primes #3645877 ← → #3645893

Radix Representation

Decimal	3645878
Binary	1101111010000110110110 (22 bits)
Octal	0o15720666
Hexadecimal	0x37A1B6

Divisor Catalog (4)

1 2 1,822,939 3,645,878

Collatz Trajectory (84 steps to reach 1)

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

3,645,878 1,822,939 5,468,818 2,734,409 8,203,228 4,101,614 2,050,807 6,152,422 3,076,211 9,228,634 4,614,317 13,842,952 6,921,476 3,460,738 1,730,369 5,191,108 2,595,554 1,297,777 3,893,332 1,946,666 973,333 2,920,000 1,460,000 730,000 365,000 182,500 91,250 45,625 136,876 68,438 34,219 102,658 51,329 153,988 76,994 38,497 115,492 57,746 28,873 86,620 43,310 21,655 64,966 32,483 97,450 48,725 146,176 73,088 36,544 18,272 9,136 4,568 2,284 1,142 571 1,714 857 2,572 1,286 643

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