21191038722

Names of 21191038722

• Cardinal: 21191038722 can be written as Twenty-one billion, one hundred ninety-one million, thirty-eight thousand, seven hundred twenty-two.

Scientific notation

• Scientific notation: 2.1191038722 × 10¹⁰

Factors of 21191038722

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 236

Divisors of 21191038722

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 42 43 49 54 63 81 86 98 126 129 147 162 181 189 258 294 301 343 362 378 387 441 543 567 602 686 774 882 903 1029 1086 1134 1161 1267 1323 1629 1806 2058 2107 2322 2401 2534 2646 2709 3087 3258 3483 3801 3969 4214 4802 4887 5418 6174 6321 6966 7203 7602 7783 7938 8127 8869 9261 9774 11403 12642 14406 14661 14749 15566 16254 16807 17738 18522 18963 21609 22806 23349 24381 26607 27783 29322 29498 33614 34209 37926 43218 44247 46698 48762 50421 53214 54481 55566 56889 62083 64827 68418 70047 79821 88494 100842 102627 103243 108962 113778 124166 129654 132741 140094 151263 159642 163443 170667 186249 194481 205254 206486 210141 239463 265482 302526 309729 326886 341334 372498 381367 388962 398223 420282 434581 453789 478926 490329 558747 619458 630423 718389 722701 762734 796446 869162 907578 929187 980658 1117494 1144101 1194669 1260846 1303743 1361367 1436778 1445402 1470987 1676241 1858374 2168103 2288202 2389338 2607486 2669569 2722734 2787561 2941974 3042067 3352482 3432303 3911229 4336206 4412961 5028723 5339138 5575122 6084134 6504309 6864606 7822458 8008707 8362683 8825922 9126201 10057446 10296909 11733687 13008618 16017414 16725366 18252402 18686983 19512927 20593818 23467374 24026121 27378603 30890727 35201061 37373966 39025854 48052242 54757206 56060949 58538781 61781454 70402122 72078363 82135809 112121898 117077562 130808881 144156726 164271618 168182847 216235089 246407427 261617762 336365694 392426643 432470178 492814854 504548541 784853286 1009097082 1177279929 1513645623 2354559858 3027291246 3531839787 7063679574 10595519361 21191038722
• Sum of all divisors σ(n): 56998573632
• Sum of proper divisors (its aliquot sum) s(n): 35807534910
• 21191038722 is an abundant number, because the sum of its proper divisors (35807534910) is greater than itself. Its abundance is 14616496188

Bases of 21191038722

• Binary: 10011101111000101011001011100000010₂
• Hexadecimal: 0x4EF159702
• Base-36: 9QGLI4I

Squares and roots of 21191038722

• 21191038722 squared (21191038722²) is 449060122117303393284
• 21191038722 cubed (21191038722³) is 9516050436293824833303238743048
• The square root of 21191038722 is 145571.4213779615
• The cube root of 21191038722 is 2767.2649880857

Scales and comparisons

• 21,191,038,722 seconds is equal to 673 years, 42 weeks, 15 hours, 38 minutes, 42 seconds.
• To count from 1 to 21,191,038,722 would take you about one thousand, three hundred forty-seven 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 21191038722 cubic inches would be around 230.6 feet tall.

Recreational maths with 21191038722

• 21191038722 backwards is 22783019112
• The number of decimal digits it has is: 11
• The sum of 21191038722's digits is 36
• More coming soon!