λ
Integer Codex

1,619,626

2 × 31 × 151 × 173
Deficient Even Composite

For 1,619,626, the 16 positive divisors have a total of 2,539,008. Removing 1,619,626 leaves 919,382, which gives the deficient classification.

Prime Factor Structure

Factorization String 2 × 31 × 151 × 173
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 2,539,008
Proper Divisor Sum 919,382
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #1619603 ← → #1619633

Radix Representation

Decimal 1619626
Binary 110001011011010101010 (21 bits)
Octal 0o6133252
Hexadecimal 0x18B6AA

Divisor Catalog (16)

1 2 31 62 151 173 302 346 4,681 5,363 9,362 10,726 26,123 52,246 809,813 1,619,626

Collatz Trajectory (62 steps to reach 1)

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

1,619,626 809,813 2,429,440 1,214,720 607,360 303,680 151,840 75,920 37,960 18,980 9,490 4,745 14,236 7,118 3,559 10,678 5,339 16,018 8,009 24,028 12,014 6,007 18,022 9,011 27,034 13,517 40,552 20,276 10,138 5,069 15,208 7,604 3,802 1,901 5,704 2,852 1,426 713 2,140 1,070 535 1,606 803 2,410 1,205 3,616 1,808 904 452 226 113 340 170 85 256 128 64 32 16 8

More profiles

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