6,528,215

5 × 1305643

Starting at 6,528,215, the Collatz iteration reaches 1 after 103 steps. The first transition is 19584646; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 1305643

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 7,833,864

Proper Divisor Sum 1,305,649

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #6528209 ← → #6528233

Radix Representation

Decimal	6528215
Binary	11000111001110011010111 (23 bits)
Octal	0o30716327
Hexadecimal	0x639CD7

Divisor Catalog (4)

1 5 1,305,643 6,528,215

Collatz Trajectory (103 steps to reach 1)

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

6,528,215 19,584,646 9,792,323 29,376,970 14,688,485 44,065,456 22,032,728 11,016,364 5,508,182 2,754,091 8,262,274 4,131,137 12,393,412 6,196,706 3,098,353 9,295,060 4,647,530 2,323,765 6,971,296 3,485,648 1,742,824 871,412 435,706 217,853 653,560 326,780 163,390 81,695 245,086 122,543 367,630 183,815 551,446 275,723 827,170 413,585 1,240,756 620,378 310,189 930,568 465,284 232,642 116,321 348,964 174,482 87,241 261,724 130,862 65,431 196,294 98,147 294,442 147,221 441,664 220,832 110,416 55,208 27,604 13,802 6,901

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