2,909,959

13 × 223843

Starting at 2,909,959, the Collatz iteration reaches 1 after 151 steps. The first transition is 8729878; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 13 × 223843

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 3,133,816

Proper Divisor Sum 223,857

Digit Sum / Digital Root 43 (Root: 7)

Adjacent Primes #2909957 ← → #2909971

Radix Representation

Decimal	2909959
Binary	1011000110011100000111 (22 bits)
Octal	0o13063407
Hexadecimal	0x2C6707

Divisor Catalog (4)

1 13 223,843 2,909,959

Collatz Trajectory (151 steps to reach 1)

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

2,909,959 8,729,878 4,364,939 13,094,818 6,547,409 19,642,228 9,821,114 4,910,557 14,731,672 7,365,836 3,682,918 1,841,459 5,524,378 2,762,189 8,286,568 4,143,284 2,071,642 1,035,821 3,107,464 1,553,732 776,866 388,433 1,165,300 582,650 291,325 873,976 436,988 218,494 109,247 327,742 163,871 491,614 245,807 737,422 368,711 1,106,134 553,067 1,659,202 829,601 2,488,804 1,244,402 622,201 1,866,604 933,302 466,651 1,399,954 699,977 2,099,932 1,049,966 524,983 1,574,950 787,475 2,362,426 1,181,213 3,543,640 1,771,820 885,910 442,955 1,328,866 664,433

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