18,408,364

2² × 13 × 354007

18,408,364 factors as 2^2 × 13 × 354007. Its 12 positive divisors give a proper-divisor sum of 16,284,420, so this integer is deficient. The Collatz stopping time is 107 steps.

Prime Factor Structure

Factorization String 2^2 × 13 × 354007

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 34,692,784

Proper Divisor Sum 16,284,420

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #18408347 ← → #18408371

Radix Representation

Decimal	18408364
Binary	1000110001110001110101100 (25 bits)
Octal	0o106161654
Hexadecimal	0x118E3AC

Divisor Catalog (12)

1 2 4 13 26 52 354,007 708,014 1,416,028 4,602,091 9,204,182 18,408,364

Collatz Trajectory (107 steps to reach 1)

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

18,408,364 9,204,182 4,602,091 13,806,274 6,903,137 20,709,412 10,354,706 5,177,353 15,532,060 7,766,030 3,883,015 11,649,046 5,824,523 17,473,570 8,736,785 26,210,356 13,105,178 6,552,589 19,657,768 9,828,884 4,914,442 2,457,221 7,371,664 3,685,832 1,842,916 921,458 460,729 1,382,188 691,094 345,547 1,036,642 518,321 1,554,964 777,482 388,741 1,166,224 583,112 291,556 145,778 72,889 218,668 109,334 54,667 164,002 82,001 246,004 123,002 61,501 184,504 92,252 46,126 23,063 69,190 34,595 103,786 51,893 155,680 77,840 38,920 19,460

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