λ
Ratio Atlas

21,189,341

21189341
Deficient Odd Prime

21,189,341 factors as 21189341. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 190 steps.

Prime Factor Structure

Factorization String 21189341
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 21,189,342
Proper Divisor Sum 1
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #21189331 ← → #21189397

Radix Representation

Decimal 21189341
Binary 1010000110101001011011101 (25 bits)
Octal 0o120651335
Hexadecimal 0x14352DD

Divisor Catalog (2)

Collatz Trajectory (190 steps to reach 1)

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

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