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Integer Codex
691
691
Deficient Odd Prime

Prime Factor Structure

Factorization String 691
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 692
Proper Divisor Sum 1
Digit Sum / Digital Root 16 (Root: 7)
Adjacent Primes #683 ← → #701

Radix Representation

Decimal 691
Binary 1010110011 (10 bits)
Octal 0o1263
Hexadecimal 0x2B3

Divisor Catalog (2)

1 691

Collatz Trajectory (126 steps to reach 1)

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

Active Feeder Network

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.

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