λ
Sigma Notebook

1,618,648

23 × 19 × 23 × 463
Abundant Even Composite

1,618,648 is even and not a perfect square. Its factorization is 2^3 × 19 × 23 × 463 and its 32 divisors sum to 3,340,800.

Prime Factor Structure

Factorization String 2^3 × 19 × 23 × 463
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 32
Divisor Sum (σ) 3,340,800
Proper Divisor Sum 1,722,152
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #1618637 ← → #1618663

Radix Representation

Decimal 1618648
Binary 110001011001011011000 (21 bits)
Octal 0o6131330
Hexadecimal 0x18B2D8

Divisor Catalog (32)

1 2 4 8 19 23 38 46 76 92 152 184 437 463 874 926 1,748 1,852 3,496 3,704 8,797 10,649 17,594 21,298 35,188 42,596 70,376 85,192 202,331 404,662 809,324 1,618,648

Collatz Trajectory (163 steps to reach 1)

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

1,618,648 809,324 404,662 202,331 606,994 303,497 910,492 455,246 227,623 682,870 341,435 1,024,306 512,153 1,536,460 768,230 384,115 1,152,346 576,173 1,728,520 864,260 432,130 216,065 648,196 324,098 162,049 486,148 243,074 121,537 364,612 182,306 91,153 273,460 136,730 68,365 205,096 102,548 51,274 25,637 76,912 38,456 19,228 9,614 4,807 14,422 7,211 21,634 10,817 32,452 16,226 8,113 24,340 12,170 6,085 18,256 9,128 4,564 2,282 1,141 3,424 1,712

More profiles

← Previous Integer #1,618,647 Browse Full Index Next Integer #1,618,649 →