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2,958,880

25 × 5 × 18493
Abundant Even Composite

2,958,880 factors as 2^5 × 5 × 18493. Its 24 positive divisors give a proper-divisor sum of 4,031,852, so this integer is abundant. The Collatz stopping time is 138 steps.

Prime Factor Structure

Factorization String 2^5 × 5 × 18493
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 6,990,732
Proper Divisor Sum 4,031,852
Digit Sum / Digital Root 40 (Root: 4)
Adjacent Primes #2958877 ← → #2958887

Radix Representation

Decimal 2958880
Binary 1011010010011000100000 (22 bits)
Octal 0o13223040
Hexadecimal 0x2D2620

Divisor Catalog (24)

1 2 4 5 8 10 16 20 32 40 80 160 18,493 36,986 73,972 92,465 147,944 184,930 295,888 369,860 591,776 739,720 1,479,440 2,958,880

Collatz Trajectory (138 steps to reach 1)

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

2,958,880 1,479,440 739,720 369,860 184,930 92,465 277,396 138,698 69,349 208,048 104,024 52,012 26,006 13,003 39,010 19,505 58,516 29,258 14,629 43,888 21,944 10,972 5,486 2,743 8,230 4,115 12,346 6,173 18,520 9,260 4,630 2,315 6,946 3,473 10,420 5,210 2,605 7,816 3,908 1,954 977 2,932 1,466 733 2,200 1,100 550 275 826 413 1,240 620 310 155 466 233 700 350 175 526

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