λ
Ratio Atlas

21,391,849

21391849
Deficient Odd Prime

Prime Factor Structure

Factorization String 21391849
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 21,391,850
Proper Divisor Sum 1
Digit Sum / Digital Root 37 (Root: 1)
Adjacent Primes #21391841 ← → #21391871

Radix Representation

Decimal 21391849
Binary 1010001100110100111101001 (25 bits)
Octal 0o121464751
Hexadecimal 0x14669E9

Divisor Catalog (2)

Collatz Trajectory (234 steps to reach 1)

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

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