5,018,721

3 × 137 × 12211

5,018,721 has digital root 6. The neighboring primes are 5018701 and 5018731; its proper-divisor sum differs from the starting integer by -3,296,418.

Prime Factor Structure

Factorization String 3 × 137 × 12211

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 6,741,024

Proper Divisor Sum 1,722,303

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #5018701 ← → #5018731

Radix Representation

Decimal	5018721
Binary	10011001001010001100001 (23 bits)
Octal	0o23112141
Hexadecimal	0x4C9461

Divisor Catalog (8)

1 3 137 411 12,211 36,633 1,672,907 5,018,721

Collatz Trajectory (157 steps to reach 1)

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

5,018,721 15,056,164 7,528,082 3,764,041 11,292,124 5,646,062 2,823,031 8,469,094 4,234,547 12,703,642 6,351,821 19,055,464 9,527,732 4,763,866 2,381,933 7,145,800 3,572,900 1,786,450 893,225 2,679,676 1,339,838 669,919 2,009,758 1,004,879 3,014,638 1,507,319 4,521,958 2,260,979 6,782,938 3,391,469 10,174,408 5,087,204 2,543,602 1,271,801 3,815,404 1,907,702 953,851 2,861,554 1,430,777 4,292,332 2,146,166 1,073,083 3,219,250 1,609,625 4,828,876 2,414,438 1,207,219 3,621,658 1,810,829 5,432,488 2,716,244 1,358,122 679,061 2,037,184 1,018,592 509,296 254,648 127,324 63,662 31,831

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