λ
Ratio Atlas
19,981
13 × 29 × 53
Deficient Odd Composite

Prime Factor Structure

Factorization String 13 × 29 × 53
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 22,680
Proper Divisor Sum 2,699
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #19979 ← → #19991

Radix Representation

Decimal 19981
Binary 100111000001101 (15 bits)
Octal 0o47015
Hexadecimal 0x4E0D

Divisor Catalog (8)

Collatz Trajectory (92 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.

← Previous Integer #19,980 Browse Full Index Next Integer #19,982 →