2,989,120

2⁶ × 5 × 9341

Starting at 2,989,120, the Collatz iteration reaches 1 after 45 steps. The first transition is 1494560; the starting value is even with 28 positive divisors.

Prime Factor Structure

Factorization String 2^6 × 5 × 9341

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 28

Divisor Sum (σ) 7,118,604

Proper Divisor Sum 4,129,484

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #2989097 ← → #2989139

Radix Representation

Decimal	2989120
Binary	1011011001110001000000 (22 bits)
Octal	0o13316100
Hexadecimal	0x2D9C40

Divisor Catalog (28)

1 2 4 5 8 10 16 20 32 40 64 80 160 320 9,341 18,682 37,364 46,705 74,728 93,410 149,456 186,820 298,912 373,640 597,824 747,280 1,494,560 2,989,120

Collatz Trajectory (45 steps to reach 1)

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

2,989,120 1,494,560 747,280 373,640 186,820 93,410 46,705 140,116 70,058 35,029 105,088 52,544 26,272 13,136 6,568 3,284 1,642 821 2,464 1,232 616 308 154 77 232 116 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

← Previous Integer #2,989,119 Browse Full Index Next Integer #2,989,121 →