λ
Sequence Observatory

5,172,722

2 × 31 × 83431
Deficient Even Composite

Starting at 5,172,722, the Collatz iteration reaches 1 after 219 steps. The first transition is 2586361; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 31 × 83431
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 8,009,472
Proper Divisor Sum 2,836,750
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #5172703 ← → #5172733

Radix Representation

Decimal 5172722
Binary 10011101110110111110010 (23 bits)
Octal 0o23566762
Hexadecimal 0x4EEDF2

Divisor Catalog (8)

1 2 31 62 83,431 166,862 2,586,361 5,172,722

Collatz Trajectory (219 steps to reach 1)

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

5,172,722 2,586,361 7,759,084 3,879,542 1,939,771 5,819,314 2,909,657 8,728,972 4,364,486 2,182,243 6,546,730 3,273,365 9,820,096 4,910,048 2,455,024 1,227,512 613,756 306,878 153,439 460,318 230,159 690,478 345,239 1,035,718 517,859 1,553,578 776,789 2,330,368 1,165,184 582,592 291,296 145,648 72,824 36,412 18,206 9,103 27,310 13,655 40,966 20,483 61,450 30,725 92,176 46,088 23,044 11,522 5,761 17,284 8,642 4,321 12,964 6,482 3,241 9,724 4,862 2,431 7,294 3,647 10,942 5,471

More profiles

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