721,111

721111

721,111 factors as 721111. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 180 steps.

Prime Factor Structure

Factorization String 721111

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 721,112

Proper Divisor Sum 1

Digit Sum / Digital Root 13 (Root: 4)

Adjacent Primes #721109 ← → #721117

Radix Representation

Decimal	721111
Binary	10110000000011010111 (20 bits)
Octal	0o2600327
Hexadecimal	0xB00D7

Divisor Catalog (2)

1 721,111

Collatz Trajectory (180 steps to reach 1)

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

721,111 2,163,334 1,081,667 3,245,002 1,622,501 4,867,504 2,433,752 1,216,876 608,438 304,219 912,658 456,329 1,368,988 684,494 342,247 1,026,742 513,371 1,540,114 770,057 2,310,172 1,155,086 577,543 1,732,630 866,315 2,598,946 1,299,473 3,898,420 1,949,210 974,605 2,923,816 1,461,908 730,954 365,477 1,096,432 548,216 274,108 137,054 68,527 205,582 102,791 308,374 154,187 462,562 231,281 693,844 346,922 173,461 520,384 260,192 130,096 65,048 32,524 16,262 8,131 24,394 12,197 36,592 18,296 9,148 4,574

More profiles

Browse other published profiles and their separate link collections.

No other profiles in this collection.

← Previous Integer #721,110 Browse Full Index Next Integer #721,112 →