λ
Sigma Notebook

1,662,648

23 × 3 × 13 × 732
Abundant Even Composite

1,662,648 is even and not a perfect square. Its factorization is 2^3 × 3 × 13 × 73^2 and its 48 divisors sum to 4,538,520.

Prime Factor Structure

Factorization String 2^3 × 3 × 13 × 73^2
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 48
Divisor Sum (σ) 4,538,520
Proper Divisor Sum 2,875,872
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #1662643 ← → #1662653

Radix Representation

Decimal 1662648
Binary 110010101111010111000 (21 bits)
Octal 0o6257270
Hexadecimal 0x195EB8

Divisor Catalog (48)

1 2 3 4 6 8 12 13 24 26 39 52 73 78 104 146 156 219 292 312 438 584 876 949 1,752 1,898 2,847 3,796 5,329 5,694 7,592 10,658 11,388 15,987 21,316 22,776 31,974 42,632 63,948 69,277 127,896 138,554 207,831 277,108 415,662 554,216 831,324 1,662,648

Collatz Trajectory (207 steps to reach 1)

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

1,662,648 831,324 415,662 207,831 623,494 311,747 935,242 467,621 1,402,864 701,432 350,716 175,358 87,679 263,038 131,519 394,558 197,279 591,838 295,919 887,758 443,879 1,331,638 665,819 1,997,458 998,729 2,996,188 1,498,094 749,047 2,247,142 1,123,571 3,370,714 1,685,357 5,056,072 2,528,036 1,264,018 632,009 1,896,028 948,014 474,007 1,422,022 711,011 2,133,034 1,066,517 3,199,552 1,599,776 799,888 399,944 199,972 99,986 49,993 149,980 74,990 37,495 112,486 56,243 168,730 84,365 253,096 126,548 63,274

More profiles

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