15,541,409

13² × 91961

15,541,409 factors as 13^2 × 91961. Its 6 positive divisors give a proper-divisor sum of 1,287,637, so this integer is deficient. The Collatz stopping time is 156 steps.

Prime Factor Structure

Factorization String 13^2 × 91961

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 16,829,046

Proper Divisor Sum 1,287,637

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #15541381 ← → #15541439

Radix Representation

Decimal	15541409
Binary	111011010010010010100001 (24 bits)
Octal	0o73222241
Hexadecimal	0xED24A1

Divisor Catalog (6)

1 13 169 91,961 1,195,493 15,541,409

Collatz Trajectory (156 steps to reach 1)

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

15,541,409 46,624,228 23,312,114 11,656,057 34,968,172 17,484,086 8,742,043 26,226,130 13,113,065 39,339,196 19,669,598 9,834,799 29,504,398 14,752,199 44,256,598 22,128,299 66,384,898 33,192,449 99,577,348 49,788,674 24,894,337 74,683,012 37,341,506 18,670,753 56,012,260 28,006,130 14,003,065 42,009,196 21,004,598 10,502,299 31,506,898 15,753,449 47,260,348 23,630,174 11,815,087 35,445,262 17,722,631 53,167,894 26,583,947 79,751,842 39,875,921 119,627,764 59,813,882 29,906,941 89,720,824 44,860,412 22,430,206 11,215,103 33,645,310 16,822,655 50,467,966 25,233,983 75,701,950 37,850,975 113,552,926 56,776,463 170,329,390 85,164,695 255,494,086 127,747,043

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