λ
Sequence Observatory

2,528,465

5 × 505693
Deficient Odd Composite

Starting at 2,528,465, the Collatz iteration reaches 1 after 104 steps. The first transition is 7585396; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 505693
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 3,034,164
Proper Divisor Sum 505,699
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #2528441 ← → #2528479

Radix Representation

Decimal 2528465
Binary 1001101001010011010001 (22 bits)
Octal 0o11512321
Hexadecimal 0x2694D1

Divisor Catalog (4)

1 5 505,693 2,528,465

Collatz Trajectory (104 steps to reach 1)

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

2,528,465 7,585,396 3,792,698 1,896,349 5,689,048 2,844,524 1,422,262 711,131 2,133,394 1,066,697 3,200,092 1,600,046 800,023 2,400,070 1,200,035 3,600,106 1,800,053 5,400,160 2,700,080 1,350,040 675,020 337,510 168,755 506,266 253,133 759,400 379,700 189,850 94,925 284,776 142,388 71,194 35,597 106,792 53,396 26,698 13,349 40,048 20,024 10,012 5,006 2,503 7,510 3,755 11,266 5,633 16,900 8,450 4,225 12,676 6,338 3,169 9,508 4,754 2,377 7,132 3,566 1,783 5,350 2,675

More profiles

← Previous Integer #2,528,464 Browse Full Index Next Integer #2,528,466 →