λ
Sequence Observatory

4,994,528

25 × 7 × 11 × 2027
Abundant Even Composite

Starting at 4,994,528, the Collatz iteration reaches 1 after 69 steps. The first transition is 2497264; the starting value is even with 48 positive divisors.

Prime Factor Structure

Factorization String 2^5 × 7 × 11 × 2027
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 48
Divisor Sum (σ) 12,265,344
Proper Divisor Sum 7,270,816
Digit Sum / Digital Root 41 (Root: 5)
Adjacent Primes #4994513 ← → #4994543

Radix Representation

Decimal 4994528
Binary 10011000011010111100000 (23 bits)
Octal 0o23032740
Hexadecimal 0x4C35E0

Divisor Catalog (48)

1 2 4 7 8 11 14 16 22 28 32 44 56 77 88 112 154 176 224 308 352 616 1,232 2,027 2,464 4,054 8,108 14,189 16,216 22,297 28,378 32,432 44,594 56,756 64,864 89,188 113,512 156,079 178,376 227,024 312,158 356,752 454,048 624,316 713,504 1,248,632 2,497,264 4,994,528

Collatz Trajectory (69 steps to reach 1)

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

4,994,528 2,497,264 1,248,632 624,316 312,158 156,079 468,238 234,119 702,358 351,179 1,053,538 526,769 1,580,308 790,154 395,077 1,185,232 592,616 296,308 148,154 74,077 222,232 111,116 55,558 27,779 83,338 41,669 125,008 62,504 31,252 15,626 7,813 23,440 11,720 5,860 2,930 1,465 4,396 2,198 1,099 3,298 1,649 4,948 2,474 1,237 3,712 1,856 928 464 232 116 58 29 88 44 22 11 34 17 52 26

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