845,651

571 × 1481

Starting at 845,651, the Collatz iteration reaches 1 after 131 steps. The first transition is 2536954; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 571 × 1481

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 847,704

Proper Divisor Sum 2,053

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #845623 ← → #845653

Radix Representation

Decimal	845651
Binary	11001110011101010011 (20 bits)
Octal	0o3163523
Hexadecimal	0xCE753

Divisor Catalog (4)

1 571 1,481 845,651

Collatz Trajectory (131 steps to reach 1)

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

845,651 2,536,954 1,268,477 3,805,432 1,902,716 951,358 475,679 1,427,038 713,519 2,140,558 1,070,279 3,210,838 1,605,419 4,816,258 2,408,129 7,224,388 3,612,194 1,806,097 5,418,292 2,709,146 1,354,573 4,063,720 2,031,860 1,015,930 507,965 1,523,896 761,948 380,974 190,487 571,462 285,731 857,194 428,597 1,285,792 642,896 321,448 160,724 80,362 40,181 120,544 60,272 30,136 15,068 7,534 3,767 11,302 5,651 16,954 8,477 25,432 12,716 6,358 3,179 9,538 4,769 14,308 7,154 3,577 10,732 5,366

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