λ
Sigma Notebook

724,605

3 × 5 × 7 × 67 × 103
Deficient Odd Composite

724,605 is odd and not a perfect square. Its factorization is 3 × 5 × 7 × 67 × 103 and its 32 divisors sum to 1,357,824.

Prime Factor Structure

Factorization String 3 × 5 × 7 × 67 × 103
Distinct Prime Factors 5
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 32
Divisor Sum (σ) 1,357,824
Proper Divisor Sum 633,219
Digit Sum / Digital Root 24 (Root: 6)
Adjacent Primes #724601 ← → #724609

Radix Representation

Decimal 724605
Binary 10110000111001111101 (20 bits)
Octal 0o2607175
Hexadecimal 0xB0E7D

Divisor Catalog (32)

1 3 5 7 15 21 35 67 103 105 201 309 335 469 515 721 1,005 1,407 1,545 2,163 2,345 3,605 6,901 7,035 10,815 20,703 34,505 48,307 103,515 144,921 241,535 724,605

Collatz Trajectory (180 steps to reach 1)

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

724,605 2,173,816 1,086,908 543,454 271,727 815,182 407,591 1,222,774 611,387 1,834,162 917,081 2,751,244 1,375,622 687,811 2,063,434 1,031,717 3,095,152 1,547,576 773,788 386,894 193,447 580,342 290,171 870,514 435,257 1,305,772 652,886 326,443 979,330 489,665 1,468,996 734,498 367,249 1,101,748 550,874 275,437 826,312 413,156 206,578 103,289 309,868 154,934 77,467 232,402 116,201 348,604 174,302 87,151 261,454 130,727 392,182 196,091 588,274 294,137 882,412 441,206 220,603 661,810 330,905 992,716

More profiles

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