λ
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Atlas › Integer Profiles › Node 1,621,797

1,621,797

3 × 540599
Deficient Odd Composite

1,621,797 has the prime decomposition 3 × 540599. Its 2 distinct prime factors produce 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 540599
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 2,162,400
Proper Divisor Sum 540,603
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #1621793 ← → #1621819

Radix Representation

Decimal 1621797
Binary 110001011111100100101 (21 bits)
Octal 0o6137445
Hexadecimal 0x18BF25

Divisor Catalog (4)

1 3 540,599 1,621,797

Collatz Trajectory (101 steps to reach 1)

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

1,621,797 4,865,392 2,432,696 1,216,348 608,174 304,087 912,262 456,131 1,368,394 684,197 2,052,592 1,026,296 513,148 256,574 128,287 384,862 192,431 577,294 288,647 865,942 432,971 1,298,914 649,457 1,948,372 974,186 487,093 1,461,280 730,640 365,320 182,660 91,330 45,665 136,996 68,498 34,249 102,748 51,374 25,687 77,062 38,531 115,594 57,797 173,392 86,696 43,348 21,674 10,837 32,512 16,256 8,128 4,064 2,032 1,016 508 254 127 382 191 574 287

More profiles

1,581,965 3,120,923 3,328,872 3,166,909 315,992 2,422,943 9,569,620 5,413,114 3,359,004 6,927,058 5,972,210 7,353,818 4,703,444 9,380,254 9,449,269 9,759,054
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