6,618,826

2 × 3309413

Starting at 6,618,826, the Collatz iteration reaches 1 after 178 steps. The first transition is 3309413; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 3309413

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 9,928,242

Proper Divisor Sum 3,309,416

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #6618823 ← → #6618827

Radix Representation

Decimal	6618826
Binary	11001001111111011001010 (23 bits)
Octal	0o31177312
Hexadecimal	0x64FECA

Divisor Catalog (4)

1 2 3,309,413 6,618,826

Collatz Trajectory (178 steps to reach 1)

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

6,618,826 3,309,413 9,928,240 4,964,120 2,482,060 1,241,030 620,515 1,861,546 930,773 2,792,320 1,396,160 698,080 349,040 174,520 87,260 43,630 21,815 65,446 32,723 98,170 49,085 147,256 73,628 36,814 18,407 55,222 27,611 82,834 41,417 124,252 62,126 31,063 93,190 46,595 139,786 69,893 209,680 104,840 52,420 26,210 13,105 39,316 19,658 9,829 29,488 14,744 7,372 3,686 1,843 5,530 2,765 8,296 4,148 2,074 1,037 3,112 1,556 778 389 1,168

← Previous Integer #6,618,825 Browse Full Index Next Integer #6,618,827 →