λ
Ratio Atlas

213,713

213713
Deficient Odd Prime

213,713 factors as 213713. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 72 steps.

Prime Factor Structure

Factorization String 213713
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 213,714
Proper Divisor Sum 1
Digit Sum / Digital Root 17 (Root: 8)
Adjacent Primes #213659 ← → #213721

Radix Representation

Decimal 213713
Binary 110100001011010001 (18 bits)
Octal 0o641321
Hexadecimal 0x342D1

Divisor Catalog (2)

Collatz Trajectory (72 steps to reach 1)

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

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