λ
Sequence Observatory

1,747,851

3 × 7 × 83231
Deficient Odd Composite

Starting at 1,747,851, the Collatz iteration reaches 1 after 202 steps. The first transition is 5243554; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 7 × 83231
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 2,663,424
Proper Divisor Sum 915,573
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #1747847 ← → #1747877

Radix Representation

Decimal 1747851
Binary 110101010101110001011 (21 bits)
Octal 0o6525613
Hexadecimal 0x1AAB8B

Divisor Catalog (8)

1 3 7 21 83,231 249,693 582,617 1,747,851

Collatz Trajectory (202 steps to reach 1)

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

1,747,851 5,243,554 2,621,777 7,865,332 3,932,666 1,966,333 5,899,000 2,949,500 1,474,750 737,375 2,212,126 1,106,063 3,318,190 1,659,095 4,977,286 2,488,643 7,465,930 3,732,965 11,198,896 5,599,448 2,799,724 1,399,862 699,931 2,099,794 1,049,897 3,149,692 1,574,846 787,423 2,362,270 1,181,135 3,543,406 1,771,703 5,315,110 2,657,555 7,972,666 3,986,333 11,959,000 5,979,500 2,989,750 1,494,875 4,484,626 2,242,313 6,726,940 3,363,470 1,681,735 5,045,206 2,522,603 7,567,810 3,783,905 11,351,716 5,675,858 2,837,929 8,513,788 4,256,894 2,128,447 6,385,342 3,192,671 9,578,014 4,789,007 14,367,022

More profiles

← Previous Integer #1,747,850 Browse Full Index Next Integer #1,747,852 →