72163219128

Names of 72163219128

• Cardinal: 72163219128 can be written as Seventy-two billion, one hundred sixty-three million, two hundred nineteen thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 7.2163219128 × 10¹⁰

Factors of 72163219128

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 42414

Divisors of 72163219128

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 13 14 21 22 24 26 28 33 39 42 44 52 56 66 71 77 78 84 88 91 104 132 142 143 154 156 168 182 213 231 264 273 284 286 308 312 364 426 429 462 497 546 568 572 616 728 781 852 858 923 924 994 1001 1092 1144 1491 1562 1704 1716 1846 1848 1988 2002 2184 2343 2769 2982 3003 3124 3432 3692 3976 4004 4686 5467 5538 5964 6006 6248 6461 7384 8008 9372 10153 10934 11076 11928 12012 12922 16401 18744 19383 20306 21868 22152 24024 25844 30459 32802 38766 40612 42307 43736 51688 60918 65604 71071 77532 81224 84614 121836 126921 131208 142142 155064 169228 213213 243672 253842 284284 296149 338456 426426 465377 507684 549991 568568 592298 852852 888447 930754 1015368 1099982 1184596 1396131 1649973 1705704 1776894 1861508 2199964 2369192 2792262 3003797 3257639 3299946 3553788 3723016 3849937 4399928 5584524 6007594 6049901 6515278 6599892 7107576 7699874 9011391 9772917 11169048 11549811 12015188 12099802 13030556 13199784 15399748 18022782 18149703 19545834 21026579 23099622 24030376 24199604 26061112 30799496 33041767 36045564 36299406 39049361 39091668 42053158 42349307 46199244 48399208 63079737 66083534 72091128 72598812 78098722 78183336 84106316 84698614 92398488 99125301 117148083 126159474 127047921 132167068 145197624 156197444 168212632 169397228 198250602 231292369 234296166 252318948 254095842 264334136 273345527 312394888 338794456 396501204 429542971 462584738 468592332 504637896 508191684 546691054 693877107 793002408 820036581 859085942 925169476 937184664 1016383368 1093382108 1288628913 1387754214 1640073162 1718171884 1850338952 2186764216 2577257826 2775508428 3006800797 3280146324 3436343768 5154515652 5551016856 6013601594 6560292648 9020402391 10309031304 12027203188 18040804782 24054406376 36081609564 72163219128
• Sum of all divisors σ(n): 245643632640
• Sum of proper divisors (its aliquot sum) s(n): 173480413512
• 72163219128 is an abundant number, because the sum of its proper divisors (173480413512) is greater than itself. Its abundance is 101317194384

Bases of 72163219128

• Binary: 1000011001101010000110101011010111000₂
• Hexadecimal: 0x10CD4356B8
• Base-36: X5G488O

Squares and roots of 72163219128

• 72163219128 squared (72163219128²) is 5207530194915745080384
• 72163219128 cubed (72163219128³) is 375792142571381463733138566385152
• The square root of 72163219128 is 268632.1260162307
• The cube root of 72163219128 is 4163.3088798265

Scales and comparisons

• 72,163,219,128 seconds is equal to 2,294 years, 29 weeks, 3 days, 10 hours, 38 minutes, 48 seconds.
• To count from 1 to 72,163,219,128 would take you about four thousand, five hundred eighty-nine years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 72163219128 cubic inches would be around 346.9 feet tall.

Recreational maths with 72163219128

• 72163219128 backwards is 82191236127
• 72163219128 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 72163219128's digits is 42
• More coming soon!