λ
Ratio Atlas

2,581,456

24 × 161341
Deficient Even Composite

2,581,456 factors as 2^4 × 161341. Its 10 positive divisors give a proper-divisor sum of 2,420,146, so this integer is deficient. The Collatz stopping time is 94 steps.

Prime Factor Structure

Factorization String 2^4 × 161341
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 10
Divisor Sum (σ) 5,001,602
Proper Divisor Sum 2,420,146
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #2581441 ← → #2581457

Radix Representation

Decimal 2581456
Binary 1001110110001111010000 (22 bits)
Octal 0o11661720
Hexadecimal 0x2763D0

Divisor Catalog (10)

1 2 4 8 16 161,341 322,682 645,364 1,290,728 2,581,456

Collatz Trajectory (94 steps to reach 1)

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

2,581,456 1,290,728 645,364 322,682 161,341 484,024 242,012 121,006 60,503 181,510 90,755 272,266 136,133 408,400 204,200 102,100 51,050 25,525 76,576 38,288 19,144 9,572 4,786 2,393 7,180 3,590 1,795 5,386 2,693 8,080 4,040 2,020 1,010 505 1,516 758 379 1,138 569 1,708 854 427 1,282 641 1,924 962 481 1,444 722 361 1,084 542 271 814 407 1,222 611 1,834 917 2,752

More profiles

← Previous Integer #2,581,455 Browse Full Index Next Integer #2,581,457 →