λ
Sigma Notebook

721,170

2 × 33 × 5 × 2671
Abundant Even Composite

721,170 is even and not a perfect square. Its factorization is 2 × 3^3 × 5 × 2671 and its 32 divisors sum to 1,923,840.

Prime Factor Structure

Factorization String 2 × 3^3 × 5 × 2671
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 32
Divisor Sum (σ) 1,923,840
Proper Divisor Sum 1,202,670
Digit Sum / Digital Root 18 (Root: 9)
Adjacent Primes #721169 ← → #721177

Radix Representation

Decimal 721170
Binary 10110000000100010010 (20 bits)
Octal 0o2600422
Hexadecimal 0xB0112

Divisor Catalog (32)

1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 2,671 5,342 8,013 13,355 16,026 24,039 26,710 40,065 48,078 72,117 80,130 120,195 144,234 240,390 360,585 721,170

Collatz Trajectory (92 steps to reach 1)

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

721,170 360,585 1,081,756 540,878 270,439 811,318 405,659 1,216,978 608,489 1,825,468 912,734 456,367 1,369,102 684,551 2,053,654 1,026,827 3,080,482 1,540,241 4,620,724 2,310,362 1,155,181 3,465,544 1,732,772 866,386 433,193 1,299,580 649,790 324,895 974,686 487,343 1,462,030 731,015 2,193,046 1,096,523 3,289,570 1,644,785 4,934,356 2,467,178 1,233,589 3,700,768 1,850,384 925,192 462,596 231,298 115,649 346,948 173,474 86,737 260,212 130,106 65,053 195,160 97,580 48,790 24,395 73,186 36,593 109,780 54,890 27,445

More profiles

← Previous Integer #721,169 Browse Full Index Next Integer #721,171 →