21861442512

Names of 21861442512

• Cardinal: 21861442512 can be written as Twenty-one billion, eight hundred sixty-one million, four hundred forty-two thousand, five hundred twelve.

Scientific notation

• Scientific notation: 2.1861442512 × 10¹⁰

Factors of 21861442512

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 122

Divisors of 21861442512

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 36 39 42 48 49 52 54 56 63 72 78 81 84 91 97 98 104 108 112 117 126 144 147 156 162 168 169 182 189 194 196 208 216 234 243 252 273 291 294 312 324 336 338 343 351 364 378 388 392 432 441 468 486 504 507 546 567 582 588 624 637 648 676 679 686 702 728 756 776 784 819 873 882 936 972 1008 1014 1029 1053 1092 1134 1164 1176 1183 1261 1274 1296 1323 1352 1358 1372 1404 1456 1512 1521 1552 1638 1701 1746 1764 1872 1911 1944 2028 2037 2058 2106 2184 2268 2328 2352 2366 2457 2522 2548 2619 2646 2704 2716 2744 2808 3024 3042 3087 3159 3276 3402 3492 3528 3549 3783 3822 3888 3969 4056 4074 4116 4212 4368 4459 4536 4563 4656 4732 4753 4914 5044 5096 5238 5292 5432 5488 5616 5733 6084 6111 6174 6318 6552 6804 6984 7056 7098 7371 7566 7644 7857 7938 8112 8148 8232 8281 8424 8827 8918 9072 9126 9261 9464 9506 9828 10088 10192 10476 10584 10647 10864 11349 11466 11907 12168 12222 12348 12636 13104 13377 13608 13689 13968 14196 14259 14742 15132 15288 15714 15876 16296 16393 16464 16562 16848 17199 17654 17836 18252 18333 18522 18928 19012 19656 20176 20952 21168 21294 22113 22698 22932 23571 23814 24336 24444 24696 24843 25272 26481 26754 27216 27378 27783 28392 28518 29484 30264 30576 31428 31752 31941 32592 32786 33124 33271 34047 34398 35308 35672 36504 36666 37044 38024 39312 40131 41067 41904 42588 42777 44226 45396 45864 47142 47628 48888 49179 49392 49686 50544 51597 52962 53508 54756 54999 55566 56784 57036 57967 58968 60528 61789 62856 63504 63882 65572 66248 66542 68094 68796 70616 71344 73008 73332 74088 74529 76048 79443 80262 82134 83349 85176 85554 88452 90792 91728 94284 95256 95823 97776 98358 99372 99813 102141 103194 105924 107016 109512 109998 111132 114072 114751 115934 117936 120393 123578 125712 127764 128331 131144 132496 133084 136188 137592 141232 146664 147537 148176 149058 154791 158886 160524 164268 164997 166698 170352 171108 173901 176904 181584 185367 188568 190512 191646 196716 198744 199626 204282 206388 211848 214032 219024 219996 222264 223587 228144 229502 231868 238329 240786 247156 255528 256662 262288 266168 272376 275184 287469 293328 295074 298116 299439 306423 309582 317772 321048 328536 329994 333396 342216 344253 347802 353808 361179 370734 377136 383292 384993 393432 397488 399252 408564 412776 423696 432523 439992 442611 444528 447174 459004 463736 476658 481572 494312 511056 513324 521703 532336 544752 556101 574938 590148 596232 598878 612846 619164 635544 642096 657072 659988 666792 670761 684432 688506 695604 714987 722358 741468 766584 769986 786864 798504 803257 817128 825552 865046 879984 885222 894348 898317 918008 927472 953316 963144 988624 1026648 1032759 1043406 1083537 1112202 1149876 1154979 1180296 1192464 1197756 1225692 1238328 1271088 1297569 1319976 1327833 1333584 1341522 1377012 1391208 1429974 1444716 1482936 1533168 1539972 1565109 1597008 1606514 1634256 1668303 1730092 1770444 1788696 1796634 1836016 1906632 1926288 2012283 2053296 2065518 2086812 2144961 2167074 2224404 2299752 2309958 2360592 2395512 2409771 2451384 2476656 2595138 2639952 2655666 2683044 2694951 2754024 2782416 2859948 2889432 2965872 3079944 3098277 3130218 3213028 3336606 3460184 3540888 3577392 3593268 3813264 3892707 3983499 4024566 4131036 4173624 4289922 4334148 4448808 4599504 4619916 4695327 4791024 4819542 4902768 5004909 5190276 5311332 5366088 5389902 5508048 5622799 5719896 5778864 6159888 6196554 6260436 6426056 6673212 6920368 7081776 7186536 7229313 7785414 7966998 8049132 8084853 8262072 8347248 8579844 8668296 8897616 9239832 9294831 9390654 9639084 10009818 10380552 10622664 10732176 10779804 11245598 11439792 11678121 12393108 12520872 12852112 13346424 14085981 14373072 14458626 15014727 15570828 15933996 16098264 16169706 16524144 16868397 17159688 17336592 18479664 18589662 18781308 19278168 20019636 20761104 21245328 21559608 21687939 22491196 23356242 24786216 25041744 26692848 27884493 28171962 28917252 30029454 31141656 31867992 32196528 32339412 33736794 34319376 35034363 37179324 37562616 38556336 40039272 43119216 43375878 44982392 46712484 49572432 50605191 55768986 56343924 57834504 60058908 62283312 63735984 64678824 65063817 67473588 70068726 74358648 75125232 80078544 86751756 89964784 93424968 101210382 105103089 111537972 112687848 115669008 120117816 129357648 130127634 134947176 140137452 148717296 151815573 173503512 186849936 195191451 202420764 210206178 223075944 225375696 240235632 260255268 269894352 280274904 303631146 347007024 390382902 404841528 420412356 446151888 455446719 520510536 560549808 607262292 780765804 809683056 840824712 910893438 1041021072 1214524584 1366340157 1561531608 1681649424 1821786876 2429049168 2732680314 3123063216 3643573752 5465360628 7287147504 10930721256 21861442512
• Sum of all divisors σ(n): 80946902400
• Sum of proper divisors (its aliquot sum) s(n): 59085459888
• 21861442512 is an abundant number, because the sum of its proper divisors (59085459888) is greater than itself. Its abundance is 37224017376

Bases of 21861442512

• Binary: 10100010111000010110010001111010000₂
• Hexadecimal: 0x5170B23D0
• Base-36: A1JQL00

Squares and roots of 21861442512

• 21861442512 squared (21861442512²) is 477922668705480870144
• 21861442512 cubed (21861442512³) is 10448078947086491501968793161728
• The square root of 21861442512 is 147856.1547991831
• The cube root of 21861442512 is 2796.1444601077

Scales and comparisons

• 21,861,442,512 seconds is equal to 695 years, 6 weeks, 3 days, 22 hours, 55 minutes, 12 seconds.
• To count from 1 to 21,861,442,512 would take you about one thousand, three hundred ninety 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 21861442512 cubic inches would be around 233 feet tall.

Recreational maths with 21861442512

• 21861442512 backwards is 21524416812
• 21861442512 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21861442512's digits is 36
• More coming soon!