6,642,145

5 × 229 × 5801

Starting at 6,642,145, the Collatz iteration reaches 1 after 240 steps. The first transition is 19926436; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 5 × 229 × 5801

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 8,006,760

Proper Divisor Sum 1,364,615

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #6642143 ← → #6642149

Radix Representation

Decimal	6642145
Binary	11001010101100111100001 (23 bits)
Octal	0o31254741
Hexadecimal	0x6559E1

Divisor Catalog (8)

1 5 229 1,145 5,801 29,005 1,328,429 6,642,145

Collatz Trajectory (240 steps to reach 1)

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

6,642,145 19,926,436 9,963,218 4,981,609 14,944,828 7,472,414 3,736,207 11,208,622 5,604,311 16,812,934 8,406,467 25,219,402 12,609,701 37,829,104 18,914,552 9,457,276 4,728,638 2,364,319 7,092,958 3,546,479 10,639,438 5,319,719 15,959,158 7,979,579 23,938,738 11,969,369 35,908,108 17,954,054 8,977,027 26,931,082 13,465,541 40,396,624 20,198,312 10,099,156 5,049,578 2,524,789 7,574,368 3,787,184 1,893,592 946,796 473,398 236,699 710,098 355,049 1,065,148 532,574 266,287 798,862 399,431 1,198,294 599,147 1,797,442 898,721 2,696,164 1,348,082 674,041 2,022,124 1,011,062 505,531 1,516,594

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