4,152,261

3 × 1384087

Starting at 4,152,261, the Collatz iteration reaches 1 after 198 steps. The first transition is 12456784; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 1384087

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 5,536,352

Proper Divisor Sum 1,384,091

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #4152257 ← → #4152271

Radix Representation

Decimal	4152261
Binary	1111110101101111000101 (22 bits)
Octal	0o17655705
Hexadecimal	0x3F5BC5

Divisor Catalog (4)

1 3 1,384,087 4,152,261

Collatz Trajectory (198 steps to reach 1)

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

4,152,261 12,456,784 6,228,392 3,114,196 1,557,098 778,549 2,335,648 1,167,824 583,912 291,956 145,978 72,989 218,968 109,484 54,742 27,371 82,114 41,057 123,172 61,586 30,793 92,380 46,190 23,095 69,286 34,643 103,930 51,965 155,896 77,948 38,974 19,487 58,462 29,231 87,694 43,847 131,542 65,771 197,314 98,657 295,972 147,986 73,993 221,980 110,990 55,495 166,486 83,243 249,730 124,865 374,596 187,298 93,649 280,948 140,474 70,237 210,712 105,356 52,678 26,339

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