4,249,015

5 × 31 × 79 × 347

Starting at 4,249,015, the Collatz iteration reaches 1 after 242 steps. The first transition is 12747046; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 5 × 31 × 79 × 347

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 5,345,280

Proper Divisor Sum 1,096,265

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #4248991 ← → #4249067

Radix Representation

Decimal	4249015
Binary	10000001101010110110111 (23 bits)
Octal	0o20152667
Hexadecimal	0x40D5B7

Divisor Catalog (16)

1 5 31 79 155 347 395 1,735 2,449 10,757 12,245 27,413 53,785 137,065 849,803 4,249,015

Collatz Trajectory (242 steps to reach 1)

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

4,249,015 12,747,046 6,373,523 19,120,570 9,560,285 28,680,856 14,340,428 7,170,214 3,585,107 10,755,322 5,377,661 16,132,984 8,066,492 4,033,246 2,016,623 6,049,870 3,024,935 9,074,806 4,537,403 13,612,210 6,806,105 20,418,316 10,209,158 5,104,579 15,313,738 7,656,869 22,970,608 11,485,304 5,742,652 2,871,326 1,435,663 4,306,990 2,153,495 6,460,486 3,230,243 9,690,730 4,845,365 14,536,096 7,268,048 3,634,024 1,817,012 908,506 454,253 1,362,760 681,380 340,690 170,345 511,036 255,518 127,759 383,278 191,639 574,918 287,459 862,378 431,189 1,293,568 646,784 323,392 161,696

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