λ
Harmonic Matrix

3,928,013

3928013
Deficient Odd Prime

3,928,013 has digital root 8. The neighboring primes are 3927997 and 3928019; its proper-divisor sum differs from the starting integer by -3,928,012.

Prime Factor Structure

Factorization String 3928013
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 3,928,014
Proper Divisor Sum 1
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #3927997 ← → #3928019

Radix Representation

Decimal 3928013
Binary 1110111110111111001101 (22 bits)
Octal 0o16767715
Hexadecimal 0x3BEFCD

Divisor Catalog (2)

Collatz Trajectory (79 steps to reach 1)

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

3,928,013 11,784,040 5,892,020 2,946,010 1,473,005 4,419,016 2,209,508 1,104,754 552,377 1,657,132 828,566 414,283 1,242,850 621,425 1,864,276 932,138 466,069 1,398,208 699,104 349,552 174,776 87,388 43,694 21,847 65,542 32,771 98,314 49,157 147,472 73,736 36,868 18,434 9,217 27,652 13,826 6,913 20,740 10,370 5,185 15,556 7,778 3,889 11,668 5,834 2,917 8,752 4,376 2,188 1,094 547 1,642 821 2,464 1,232 616 308 154 77 232 116

More profiles

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