8,418,885

3 × 5 × 67 × 8377

Starting at 8,418,885, the Collatz iteration reaches 1 after 168 steps. The first transition is 25256656; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 3 × 5 × 67 × 8377

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 13,672,896

Proper Divisor Sum 5,254,011

Digit Sum / Digital Root 42 (Root: 6)

Adjacent Primes #8418863 ← → #8418901

Radix Representation

Decimal	8418885
Binary	100000000111011001000101 (24 bits)
Octal	0o40073105
Hexadecimal	0x807645

Divisor Catalog (16)

1 3 5 15 67 201 335 1,005 8,377 25,131 41,885 125,655 561,259 1,683,777 2,806,295 8,418,885

Collatz Trajectory (168 steps to reach 1)

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

8,418,885 25,256,656 12,628,328 6,314,164 3,157,082 1,578,541 4,735,624 2,367,812 1,183,906 591,953 1,775,860 887,930 443,965 1,331,896 665,948 332,974 166,487 499,462 249,731 749,194 374,597 1,123,792 561,896 280,948 140,474 70,237 210,712 105,356 52,678 26,339 79,018 39,509 118,528 59,264 29,632 14,816 7,408 3,704 1,852 926 463 1,390 695 2,086 1,043 3,130 1,565 4,696 2,348 1,174 587 1,762 881 2,644 1,322 661 1,984 992 496 248

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