1,621,442

2 × 683 × 1187

1,621,442 factors as 2 × 683 × 1187. Its 8 positive divisors give a proper-divisor sum of 816,334, so this integer is deficient. The Collatz stopping time is 62 steps.

Prime Factor Structure

Factorization String 2 × 683 × 1187

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 2,437,776

Proper Divisor Sum 816,334

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #1621439 ← → #1621457

Radix Representation

Decimal	1621442
Binary	110001011110111000010 (21 bits)
Octal	0o6136702
Hexadecimal	0x18BDC2

Divisor Catalog (8)

1 2 683 1,187 1,366 2,374 810,721 1,621,442

Collatz Trajectory (62 steps to reach 1)

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

1,621,442 810,721 2,432,164 1,216,082 608,041 1,824,124 912,062 456,031 1,368,094 684,047 2,052,142 1,026,071 3,078,214 1,539,107 4,617,322 2,308,661 6,925,984 3,462,992 1,731,496 865,748 432,874 216,437 649,312 324,656 162,328 81,164 40,582 20,291 60,874 30,437 91,312 45,656 22,828 11,414 5,707 17,122 8,561 25,684 12,842 6,421 19,264 9,632 4,816 2,408 1,204 602 301 904 452 226 113 340 170 85 256 128 64 32 16 8

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