λ
Sequence Observatory

8,601,974

2 × 199 × 21613
Deficient Even Composite

Starting at 8,601,974, the Collatz iteration reaches 1 after 199 steps. The first transition is 4300987; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 199 × 21613
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 12,968,400
Proper Divisor Sum 4,366,426
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #8601961 ← → #8601979

Radix Representation

Decimal 8601974
Binary 100000110100000101110110 (24 bits)
Octal 0o40640566
Hexadecimal 0x834176

Divisor Catalog (8)

1 2 199 398 21,613 43,226 4,300,987 8,601,974

Collatz Trajectory (199 steps to reach 1)

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

8,601,974 4,300,987 12,902,962 6,451,481 19,354,444 9,677,222 4,838,611 14,515,834 7,257,917 21,773,752 10,886,876 5,443,438 2,721,719 8,165,158 4,082,579 12,247,738 6,123,869 18,371,608 9,185,804 4,592,902 2,296,451 6,889,354 3,444,677 10,334,032 5,167,016 2,583,508 1,291,754 645,877 1,937,632 968,816 484,408 242,204 121,102 60,551 181,654 90,827 272,482 136,241 408,724 204,362 102,181 306,544 153,272 76,636 38,318 19,159 57,478 28,739 86,218 43,109 129,328 64,664 32,332 16,166 8,083 24,250 12,125 36,376 18,188 9,094

More profiles

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