λ
Ratio Atlas
21,815
5 × 4363
Deficient Odd Composite

Prime Factor Structure

Factorization String 5 × 4363
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 26,184
Proper Divisor Sum 4,369
Digit Sum / Digital Root 17 (Root: 8)
Adjacent Primes #21803 ← → #21817

Radix Representation

Decimal 21815
Binary 101010100110111 (15 bits)
Octal 0o52467
Hexadecimal 0x5537

Divisor Catalog (4)

Collatz Trajectory (162 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 #21,814 Browse Full Index Next Integer #21,816 →