727,121

727121

727,121 factors as 727121. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 149 steps.

Prime Factor Structure

Factorization String 727121

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 727,122

Proper Divisor Sum 1

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #727079 ← → #727123

Radix Representation

Decimal	727121
Binary	10110001100001010001 (20 bits)
Octal	0o2614121
Hexadecimal	0xB1851

Divisor Catalog (2)

1 727,121

Collatz Trajectory (149 steps to reach 1)

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

727,121 2,181,364 1,090,682 545,341 1,636,024 818,012 409,006 204,503 613,510 306,755 920,266 460,133 1,380,400 690,200 345,100 172,550 86,275 258,826 129,413 388,240 194,120 97,060 48,530 24,265 72,796 36,398 18,199 54,598 27,299 81,898 40,949 122,848 61,424 30,712 15,356 7,678 3,839 11,518 5,759 17,278 8,639 25,918 12,959 38,878 19,439 58,318 29,159 87,478 43,739 131,218 65,609 196,828 98,414 49,207 147,622 73,811 221,434 110,717 332,152 166,076

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