λ
Prime Ledger

1,626,538

2 × 813269
Deficient Even Composite

1,626,538 has the prime decomposition 2 × 813269. Its 2 distinct prime factors produce 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 813269
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 2,439,810
Proper Divisor Sum 813,272
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #1626503 ← → #1626589

Radix Representation

Decimal 1626538
Binary 110001101000110101010 (21 bits)
Octal 0o6150652
Hexadecimal 0x18D1AA

Divisor Catalog (4)

1 2 813,269 1,626,538

Collatz Trajectory (62 steps to reach 1)

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

1,626,538 813,269 2,439,808 1,219,904 609,952 304,976 152,488 76,244 38,122 19,061 57,184 28,592 14,296 7,148 3,574 1,787 5,362 2,681 8,044 4,022 2,011 6,034 3,017 9,052 4,526 2,263 6,790 3,395 10,186 5,093 15,280 7,640 3,820 1,910 955 2,866 1,433 4,300 2,150 1,075 3,226 1,613 4,840 2,420 1,210 605 1,816 908 454 227 682 341 1,024 512 256 128 64 32 16 8

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