λ
Sigma Notebook

7,666,638

2 × 3 × 72 × 89 × 293
Abundant Even Composite

7,666,638 is even and not a perfect square. Its factorization is 2 × 3 × 7^2 × 89 × 293 and its 48 divisors sum to 18,098,640.

Prime Factor Structure

Factorization String 2 × 3 × 7^2 × 89 × 293
Distinct Prime Factors 5
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 48
Divisor Sum (σ) 18,098,640
Proper Divisor Sum 10,432,002
Digit Sum / Digital Root 42 (Root: 6)
Adjacent Primes #7666621 ← → #7666639

Radix Representation

Decimal 7666638
Binary 11101001111101111001110 (23 bits)
Octal 0o35175716
Hexadecimal 0x74FBCE

Divisor Catalog (48)

1 2 3 6 7 14 21 42 49 89 98 147 178 267 293 294 534 586 623 879 1,246 1,758 1,869 2,051 3,738 4,102 4,361 6,153 8,722 12,306 13,083 14,357 26,077 26,166 28,714 43,071 52,154 78,231 86,142 156,462 182,539 365,078 547,617 1,095,234 1,277,773 2,555,546 3,833,319 7,666,638

Collatz Trajectory (80 steps to reach 1)

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

7,666,638 3,833,319 11,499,958 5,749,979 17,249,938 8,624,969 25,874,908 12,937,454 6,468,727 19,406,182 9,703,091 29,109,274 14,554,637 43,663,912 21,831,956 10,915,978 5,457,989 16,373,968 8,186,984 4,093,492 2,046,746 1,023,373 3,070,120 1,535,060 767,530 383,765 1,151,296 575,648 287,824 143,912 71,956 35,978 17,989 53,968 26,984 13,492 6,746 3,373 10,120 5,060 2,530 1,265 3,796 1,898 949 2,848 1,424 712 356 178 89 268 134 67 202 101 304 152 76 38

More profiles

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