λ
Sequence Observatory

3,251,689

72 × 66361
Deficient Odd Composite

Starting at 3,251,689, the Collatz iteration reaches 1 after 177 steps. The first transition is 9755068; the starting value is odd with 6 positive divisors.

Prime Factor Structure

Factorization String 7^2 × 66361
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 6
Divisor Sum (σ) 3,782,634
Proper Divisor Sum 530,945
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #3251681 ← → #3251693

Radix Representation

Decimal 3251689
Binary 1100011001110111101001 (22 bits)
Octal 0o14316751
Hexadecimal 0x319DE9

Divisor Catalog (6)

1 7 49 66,361 464,527 3,251,689

Collatz Trajectory (177 steps to reach 1)

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

3,251,689 9,755,068 4,877,534 2,438,767 7,316,302 3,658,151 10,974,454 5,487,227 16,461,682 8,230,841 24,692,524 12,346,262 6,173,131 18,519,394 9,259,697 27,779,092 13,889,546 6,944,773 20,834,320 10,417,160 5,208,580 2,604,290 1,302,145 3,906,436 1,953,218 976,609 2,929,828 1,464,914 732,457 2,197,372 1,098,686 549,343 1,648,030 824,015 2,472,046 1,236,023 3,708,070 1,854,035 5,562,106 2,781,053 8,343,160 4,171,580 2,085,790 1,042,895 3,128,686 1,564,343 4,693,030 2,346,515 7,039,546 3,519,773 10,559,320 5,279,660 2,639,830 1,319,915 3,959,746 1,979,873 5,939,620 2,969,810 1,484,905 4,454,716

More profiles

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