21018136048

Names of 21018136048

• Cardinal: 21018136048 can be written as Twenty-one billion, eighteen million, one hundred thirty-six thousand and forty-eight.

Scientific notation

• Scientific notation: 2.1018136048 × 10¹⁰

Factors of 21018136048

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 204

Divisors of 21018136048

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 7 8 13 14 16 17 26 28 29 34 47 49 52 56 58 68 89 91 94 98 104 112 116 119 136 178 182 188 196 203 208 221 232 238 272 329 356 364 376 377 392 406 442 464 476 493 611 623 637 658 712 728 752 754 784 799 812 833 884 952 986 1157 1222 1246 1274 1316 1363 1421 1424 1456 1508 1513 1547 1598 1624 1666 1768 1904 1972 2303 2314 2444 2492 2548 2581 2632 2639 2726 2842 3016 3026 3094 3196 3248 3332 3451 3536 3944 4183 4277 4361 4606 4628 4888 4984 5096 5162 5264 5278 5452 5593 5684 6032 6052 6188 6392 6409 6664 6902 7888 8099 8366 8554 8722 9212 9256 9541 9776 9968 10192 10324 10387 10556 10591 10829 10904 11186 11368 12104 12376 12784 12818 13328 13804 16198 16732 17108 17444 17719 18067 18424 18473 18512 19082 19669 20648 20774 21112 21182 21658 21808 22372 22736 23171 24157 24208 24752 25636 27608 29281 29939 32396 33464 33553 34216 34888 35438 36134 36848 36946 38164 39151 39338 41296 41548 42224 42364 43316 43877 44744 44863 46342 48314 51272 54379 55216 56693 58562 59878 64792 66787 66928 67106 68432 69776 70876 71111 72268 72709 73892 74137 76328 78302 78676 83096 84728 86632 87754 89488 89726 92684 96628 102544 108758 113386 117124 119756 121307 124033 126469 129584 133574 134212 137683 141752 142222 144536 145418 147784 148274 152656 156604 157352 162197 166192 169456 173264 175508 179452 185368 193256 204967 217516 226772 234248 234871 239512 242614 248066 252938 267148 268424 275366 283504 284444 289072 290836 295568 296548 301223 307139 313208 314041 314704 324394 351016 358904 370736 380653 386512 409934 435032 453544 468496 469742 479024 485228 496132 497777 505876 508963 534296 536848 550732 568888 570401 581672 593096 602446 614278 626416 628082 648788 702032 717808 761306 819868 849149 868231 870064 907088 924443 939484 963781 970456 992264 995554 1011752 1017926 1068592 1101464 1135379 1137776 1140802 1163344 1186192 1204892 1228556 1256164 1297576 1522612 1576991 1639736 1644097 1698298 1736462 1848886 1878968 1927562 1940912 1984528 1991108 2023504 2035852 2062219 2108561 2149973 2202928 2270758 2281604 2409784 2457112 2512328 2595152 2664571 3045224 3153982 3279472 3288194 3396596 3472924 3484439 3697772 3757936 3855124 3982216 3992807 4071704 4124438 4217122 4299946 4541516 4563208 4819568 4914224 5024656 5329142 5944043 6090448 6307964 6471101 6576388 6793192 6945848 6968878 7395544 7710248 7964432 7985614 8143408 8248876 8434244 8599892 9083032 9126416 10658284 11038937 11888086 12615928 12942202 13152776 13586384 13891696 13937756 14435533 14759927 14791088 15420496 15971228 16497752 16868488 17199784 18166064 21316568 22077874 23776172 25231856 25884404 26305552 26808847 27875512 27949649 28871066 29519854 31942456 32995504 33736976 34399568 42633136 44155748 45297707 47552344 51768808 53617694 55751024 55899298 57742132 59039708 63884912 77272559 88311496 90595414 95104688 101048731 103537616 107235388 111798596 115484264 118079416 154545118 176622992 181190828 187661929 202097462 214470776 223597192 230968528 236158832 309090236 362381656 375323858 404194924 428941552 447194384 618180472 724763312 750647716 808389848 1236360944 1313633503 1501295432 1616779696 2627267006 3002590864 5254534012 10509068024 21018136048
• Sum of all divisors σ(n): 57708806400
• Sum of proper divisors (its aliquot sum) s(n): 36690670352
• 21018136048 is an abundant number, because the sum of its proper divisors (36690670352) is greater than itself. Its abundance is 15672534304

Bases of 21018136048

• Binary: 10011100100110001110100110111110000₂
• Hexadecimal: 0x4E4C74DF0
• Base-36: 9NLNLKG

Squares and roots of 21018136048

• 21018136048 squared (21018136048²) is 441762042932237058304
• 21018136048 cubed (21018136048³) is 9285014719192175336420780142592
• The square root of 21018136048 is 144976.3292679185
• The cube root of 21018136048 is 2759.7181697805

Scales and comparisons

• 21,018,136,048 seconds is equal to 668 years, 16 weeks, 1 day, 11 hours, 7 minutes, 28 seconds.
• To count from 1 to 21,018,136,048 would take you about one thousand, three hundred thirty-six 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 21018136048 cubic inches would be around 230 feet tall.

Recreational maths with 21018136048

• 21018136048 backwards is 84063181012
• 21018136048 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21018136048's digits is 34
• More coming soon!