λ
Sequence Observatory

3,215,710

2 × 5 × 321571
Deficient Even Composite

Starting at 3,215,710, the Collatz iteration reaches 1 after 239 steps. The first transition is 1607855; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 5 × 321571
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 5,788,296
Proper Divisor Sum 2,572,586
Digit Sum / Digital Root 19 (Root: 1)
Adjacent Primes #3215687 ← → #3215711

Radix Representation

Decimal 3215710
Binary 1100010001000101011110 (22 bits)
Octal 0o14210536
Hexadecimal 0x31115E

Divisor Catalog (8)

1 2 5 10 321,571 643,142 1,607,855 3,215,710

Collatz Trajectory (239 steps to reach 1)

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

3,215,710 1,607,855 4,823,566 2,411,783 7,235,350 3,617,675 10,853,026 5,426,513 16,279,540 8,139,770 4,069,885 12,209,656 6,104,828 3,052,414 1,526,207 4,578,622 2,289,311 6,867,934 3,433,967 10,301,902 5,150,951 15,452,854 7,726,427 23,179,282 11,589,641 34,768,924 17,384,462 8,692,231 26,076,694 13,038,347 39,115,042 19,557,521 58,672,564 29,336,282 14,668,141 44,004,424 22,002,212 11,001,106 5,500,553 16,501,660 8,250,830 4,125,415 12,376,246 6,188,123 18,564,370 9,282,185 27,846,556 13,923,278 6,961,639 20,884,918 10,442,459 31,327,378 15,663,689 46,991,068 23,495,534 11,747,767 35,243,302 17,621,651 52,864,954 26,432,477

More profiles

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