401,436

2² × 3⁵ × 7 × 59

Prime Factor Structure

Factorization String 2^2 × 3^5 × 7 × 59

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 72

Divisor Sum (σ) 1,223,040

Proper Divisor Sum 821,604

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #401417 ← → #401473

1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 59 63 81 84 108 118 126 162 177 189 236 243 252 324 354 378 413 486 531 567 708 756 826 972 1,062 1,134 1,239 1,593 1,652 1,701 2,124 2,268 2,478 3,186 3,402 3,717 4,779 4,956 6,372 6,804 7,434 9,558 11,151 14,337

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

401,436 200,718 100,359 301,078 150,539 451,618 225,809 677,428 338,714 169,357 508,072 254,036 127,018 63,509 190,528 95,264 47,632 23,816 11,908 5,954 2,977 8,932 4,466 2,233 6,700 3,350 1,675 5,026 2,513 7,540 3,770 1,885 5,656 2,828 1,414 707 2,122 1,061 3,184 1,592 796 398 199 598 299 898 449 1,348 674 337 1,012 506 253 760 380 190 95 286 143 430

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