21217168512

Names of 21217168512

• Cardinal: 21217168512 can be written as Twenty-one billion, two hundred seventeen million, one hundred sixty-eight thousand, five hundred twelve.

Scientific notation

• Scientific notation: 2.1217168512 × 10¹⁰

Factors of 21217168512

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 192

Divisors of 21217168512

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 27 32 34 36 48 51 54 64 68 72 73 81 96 97 102 108 128 136 144 146 153 162 192 194 204 216 219 272 288 289 291 292 306 324 384 388 408 432 438 459 544 576 578 582 584 612 648 657 776 816 864 867 873 876 918 1088 1152 1156 1164 1168 1224 1241 1296 1314 1377 1552 1632 1649 1728 1734 1746 1752 1836 1971 2176 2312 2328 2336 2448 2482 2592 2601 2619 2628 2754 3104 3264 3298 3456 3468 3492 3504 3672 3723 3942 4624 4656 4672 4896 4947 4964 5184 5202 5238 5256 5508 5913 6208 6528 6596 6936 6984 7008 7081 7344 7446 7803 7857 7884 9248 9312 9344 9792 9894 9928 10368 10404 10476 10512 11016 11169 11826 12416 13192 13872 13968 14016 14162 14688 14841 14892 15606 15714 15768 18496 18624 19584 19788 19856 20808 20952 21024 21097 21243 22032 22338 23409 23652 26384 27744 27936 28032 28033 28324 29376 29682 29784 31212 31428 31536 33507 36992 37248 39576 39712 41616 41904 42048 42194 42486 44064 44523 44676 46818 47304 52768 55488 55872 56066 56648 58752 59364 59568 62424 62856 63072 63291 63729 67014 79152 79424 83232 83808 84096 84099 84388 84972 88128 89046 89352 93636 94608 100521 105536 110976 111744 112132 113296 118728 119136 120377 124848 125712 126144 126582 127458 133569 134028 158304 158848 166464 167616 168198 168776 169944 176256 178092 178704 187272 189216 189873 191187 201042 211072 224264 226592 237456 238272 240754 249696 251424 252288 252297 253164 254916 267138 268056 316608 332928 335232 336396 337552 339888 356184 357408 361131 374544 378432 379746 382374 402084 448528 453184 474912 476544 481508 499392 502848 504594 506328 509832 534276 536112 569619 573561 633216 672792 675104 679776 712368 714816 722262 749088 756864 756891 759492 764748 804168 897056 906368 949824 963016 998784 1005696 1009188 1012656 1019664 1068552 1072224 1083393 1139238 1147122 1345584 1350208 1359552 1424736 1429632 1444524 1498176 1513782 1518984 1529496 1608336 1708857 1794112 1899648 1926032 2018376 2025312 2039328 2046409 2137104 2144448 2166786 2270673 2278476 2294244 2691168 2700416 2719104 2849472 2889048 2996352 3027564 3037968 3058992 3216672 3250179 3417714 3588224 3852064 4036752 4050624 4078656 4092818 4274208 4288896 4333572 4541346 4556952 4588488 5382336 5698944 5778096 6055128 6075936 6117984 6139227 6433344 6500358 6835428 7704128 8073504 8101248 8157312 8185636 8548416 8667144 9082692 9113904 9176976 9750537 10764672 11556192 12110256 12151872 12235968 12278454 12866688 13000716 13670856 15408256 16147008 16371272 17096832 17334288 18165384 18227808 18353952 18417681 19501074 23112384 24220512 24303744 24471936 24556908 26001432 27341712 32294016 32742544 34668576 36330768 36455616 36707904 36835362 39002148 46224768 48441024 49113816 52002864 54683424 55253043 65485088 69337152 72661536 72911232 73415808 73670724 78004296 96882048 98227632 104005728 109366848 110506086 130970176 138674304 145323072 147341448 156008592 165759129 196455264 208011456 218733696 221012172 261940352 290646144 294682896 312017184 331518258 392910528 416022912 442024344 589365792 624034368 663036516 785821056 884048688 1178731584 1248068736 1326073032 1768097376 2357463168 2652146064 3536194752 5304292128 7072389504 10608584256 21217168512
• Sum of all divisors σ(n): 68694461220
• Sum of proper divisors (its aliquot sum) s(n): 47477292708
• 21217168512 is an abundant number, because the sum of its proper divisors (47477292708) is greater than itself. Its abundance is 26260124196

Bases of 21217168512

• Binary: 10011110000101001000100110010000000₂
• Hexadecimal: 0x4F0A44C80
• Base-36: 9QW5K00

Squares and roots of 21217168512

• 21217168512 squared (21217168512²) is 450168239666604294144
• 21217168512 cubed (21217168512³) is 9551295399756746007676062793728
• The square root of 21217168512 is 145661.1427663535
• The cube root of 21217168512 is 2768.4019207655

Scales and comparisons

• 21,217,168,512 seconds is equal to 674 years, 33 weeks, 2 days, 1 hour, 55 minutes, 12 seconds.
• To count from 1 to 21,217,168,512 would take you about one thousand, three hundred forty-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 21217168512 cubic inches would be around 230.7 feet tall.

Recreational maths with 21217168512

• 21217168512 backwards is 21586171212
• 21217168512 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21217168512's digits is 36
• More coming soon!