21210357168

Names of 21210357168

• Cardinal: 21210357168 can be written as Twenty-one billion, two hundred ten million, three hundred fifty-seven thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1210357168 × 10¹⁰

Factors of 21210357168

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 36

Divisors of 21210357168

• Number of divisors d(n): 900
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 13 14 16 18 21 22 24 26 27 28 33 36 39 42 44 48 49 52 54 56 63 66 72 77 78 84 88 91 98 99 104 108 112 117 121 126 132 143 144 147 154 156 168 169 176 182 189 196 198 208 216 231 234 242 252 264 273 286 294 297 308 312 336 338 343 351 363 364 378 392 396 429 432 441 462 468 484 504 507 528 539 546 572 588 594 616 624 637 676 686 693 702 726 728 756 784 792 819 847 858 882 924 936 968 1001 1008 1014 1029 1078 1089 1092 1144 1176 1183 1188 1232 1274 1287 1323 1352 1372 1386 1404 1452 1456 1512 1521 1573 1584 1617 1638 1694 1716 1764 1848 1859 1872 1911 1936 2002 2028 2058 2079 2156 2178 2184 2288 2352 2366 2376 2401 2457 2541 2548 2574 2646 2704 2744 2772 2808 2904 3003 3024 3042 3087 3146 3234 3267 3276 3388 3432 3528 3549 3696 3718 3773 3822 3861 4004 4056 4116 4158 4312 4356 4368 4459 4563 4719 4732 4752 4802 4851 4914 5082 5096 5148 5292 5488 5544 5577 5616 5733 5808 5929 6006 6084 6174 6292 6468 6534 6552 6776 6864 7007 7056 7098 7203 7436 7546 7623 7644 7722 8008 8112 8232 8281 8316 8624 8712 8918 9009 9126 9261 9438 9464 9604 9702 9828 10164 10192 10296 10584 10647 11011 11088 11154 11319 11466 11858 12012 12168 12348 12584 12936 13013 13068 13104 13377 13552 14014 14157 14196 14406 14553 14872 15092 15246 15288 15444 16016 16464 16562 16632 16731 17199 17424 17787 17836 18018 18252 18522 18876 18928 19208 19404 19656 20328 20449 20592 21021 21168 21294 21609 22022 22308 22638 22869 22932 23716 24024 24336 24696 24843 25168 25872 26026 26136 26411 26754 27027 28028 28314 28392 28812 29106 29744 30184 30492 30576 30888 31213 31941 33033 33124 33264 33462 33957 34398 35574 35672 36036 36504 37044 37752 38416 38808 39039 39312 40131 40656 40898 41503 42042 42471 42588 43218 44044 44616 45276 45738 45864 47432 48048 49049 49392 49686 50193 52052 52272 52822 53361 53508 54054 56056 56628 56784 57624 57967 58212 60368 60984 61347 61776 62426 63063 63882 64827 66066 66248 66924 67914 68796 71148 71344 72072 73008 74088 74529 75504 77077 77616 78078 79233 80262 81796 83006 84084 84942 85176 86436 88088 89232 90552 91091 91476 91728 93639 94864 98098 99099 99372 100386 101871 104104 105644 106722 107016 108108 112112 113256 115248 115934 116424 117117 120393 121968 122694 124509 124852 126126 127764 129654 132132 132496 133848 135828 137592 142296 143143 144144 147147 148176 149058 154154 156156 158466 160083 160524 163592 166012 168168 169884 170352 172872 173901 176176 181104 182182 182952 184041 187278 189189 196196 198198 198744 200772 203742 208208 211288 213444 214032 216216 223587 226512 231231 231868 232848 234234 237699 240786 245388 249018 249704 252252 255528 259308 264264 267696 271656 273273 275184 280917 284592 286286 290521 294294 297297 298116 308308 312312 316932 320166 321048 327184 332024 336336 339768 343343 345744 347802 351351 364364 365904 368082 373527 374556 378378 392392 396396 397488 401544 405769 407484 422576 426888 429429 432432 441441 447174 462462 463736 468468 475398 481572 490776 498036 499408 504504 511056 518616 521703 528528 539539 543312 546546 552123 561834 572572 581042 588588 594594 596232 616616 624624 633864 637637 640332 642096 664048 679536 686686 693693 695604 702702 713097 728728 736164 747054 749112 756756 784784 792792 803088 811538 814968 819819 842751 853776 858858 871563 882882 894348 924924 927472 936936 950796 963144 981552 996072 1002001 1009008 1030029 1037232 1043406 1079078 1093092 1104246 1120581 1123668 1145144 1162084 1177176 1189188 1192464 1217307 1233232 1267728 1275274 1280664 1288287 1324323 1373372 1387386 1391208 1405404 1426194 1457456 1472328 1494108 1498224 1513512 1565109 1585584 1618617 1623076 1629936 1639638 1685502 1717716 1743126 1765764 1788696 1849848 1873872 1901592 1912911 1926288 1992144 2004002 2060058 2081079 2086812 2158156 2186184 2208492 2241162 2247336 2290288 2324168 2354352 2378376 2434614 2459457 2550548 2561328 2576574 2614689 2648646 2746744 2774772 2782416 2810808 2852388 2944656 2988216 3006003 3027024 3090087 3130218 3237234 3246152 3279276 3371004 3435432 3486252 3531528 3577392 3651921 3699696 3776773 3803184 3825822 3864861 4008004 4120116 4162158 4173624 4316312 4372368 4416984 4463459 4482324 4494672 4648336 4756752 4855851 4869228 4918914 5101096 5153148 5229378 5297292 5493488 5549544 5621616 5704776 5738733 5976432 6012006 6180174 6260436 6474468 6492304 6558552 6742008 6870864 6972504 7014007 7063056 7303842 7553546 7651644 7729722 7844067 8016008 8240232 8324316 8347248 8632624 8833968 8926918 8964648 9018009 9270261 9711702 9738456 9837828 10202192 10306296 10458756 10594584 10955763 11099088 11330319 11409552 11477466 12024012 12360348 12520872 12948936 13117104 13390377 13484016 13945008 14028014 14567553 14607684 15107092 15303288 15459444 15688134 16032016 16480464 16648632 17216199 17853836 17929296 18036018 18540522 19423404 19476912 19675656 20612592 20917512 21042021 21189168 21911526 22660638 22954932 24048024 24720696 25041744 25897872 26780754 27054027 28056028 29135106 29215368 30214184 30606576 30918888 31376268 33297264 33990957 34432398 35707672 36072036 37081044 38846808 39351312 40171131 41835024 42084042 43823052 45321276 45909864 48096048 49098049 49441392 53561508 54108054 56112056 58270212 58430736 60428368 61837776 62752536 63126063 67981914 68864796 71415344 72144072 74162088 77693616 80342262 84168084 87646104 90642552 91819728 98196098 101972871 107123016 108216108 112224112 116540424 120513393 125505072 126252126 135963828 137729592 144288144 147294147 148324176 160684524 168336168 175292208 181285104 189378189 196392196 203945742 214246032 216432216 233080848 241026786 252504252 271927656 275459184 294588294 321369048 336672336 378756378 392784392 407891484 432864432 441882441 482053572 505008504 543855312 589176588 642738096 757512756 785568784 815782968 883764882 964107144 1010017008 1178353176 1325647323 1515025512 1631565936 1767529764 1928214288 2356706352 2651294646 3030051024 3535059528 5302589292 7070119056 10605178584 21210357168
• Sum of all divisors σ(n): 84535188360
• Sum of proper divisors (its aliquot sum) s(n): 63324831192
• 21210357168 is an abundant number, because the sum of its proper divisors (63324831192) is greater than itself. Its abundance is 42114474024

Bases of 21210357168

• Binary: 10011110000001111000101110110110000₂
• Hexadecimal: 0x4F03C5DB0
• Base-36: 9QS3KC0

Squares and roots of 21210357168

• 21210357168 squared (21210357168²) is 449879251194128980224
• 21210357168 cubed (21210357168³) is 9542099600299866175210648645632
• The square root of 21210357168 is 145637.7601036215
• The cube root of 21210357168 is 2768.1056425259

Scales and comparisons

• 21,210,357,168 seconds is equal to 674 years, 22 weeks, 5 hours, 52 minutes, 48 seconds.
• To count from 1 to 21,210,357,168 would take you about one thousand, three hundred forty-eight 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 21210357168 cubic inches would be around 230.7 feet tall.

Recreational maths with 21210357168

• 21210357168 backwards is 86175301212
• 21210357168 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21210357168's digits is 36
• More coming soon!