21078888012

Names of 21078888012

• Cardinal: 21078888012 can be written as Twenty-one billion, seventy-eight million, eight hundred eighty-eight thousand and twelve.

Scientific notation

• Scientific notation: 2.1078888012 × 10¹⁰

Factors of 21078888012

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 62

Divisors of 21078888012

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 37 39 42 49 52 54 63 74 78 84 91 98 108 111 117 126 147 148 156 169 182 189 196 222 234 252 259 273 294 333 338 343 351 364 378 441 444 468 481 507 518 546 588 637 666 676 686 702 756 777 819 882 962 999 1014 1029 1036 1092 1183 1274 1323 1332 1372 1404 1443 1521 1554 1638 1764 1813 1911 1924 1998 2028 2058 2197 2331 2366 2401 2457 2548 2646 2886 3042 3087 3108 3276 3367 3549 3626 3822 3996 4116 4329 4394 4459 4563 4662 4732 4802 4914 5292 5439 5733 5772 6084 6174 6253 6591 6734 6993 7098 7203 7252 7644 8281 8658 8788 8918 9126 9261 9324 9604 9828 10101 10647 10878 11466 12348 12506 12691 12987 13182 13377 13468 13986 14196 14406 15379 16317 16562 17199 17316 17836 18252 18522 18759 19773 20202 21294 21609 21756 22932 23569 24843 25012 25382 25974 26364 26754 27972 28812 30303 30758 31213 31941 32634 33124 34398 37044 37518 38073 39546 40131 40404 42588 43218 43771 46137 47138 48951 49686 50764 51948 53508 56277 57967 59319 60606 61516 62426 63882 64827 65268 68796 70707 74529 75036 76146 79092 80262 81289 86436 87542 88837 90909 92274 93639 94276 97902 99372 107653 112554 114219 115934 118638 120393 121212 124852 127764 129654 131313 138411 141414 149058 152292 160524 162578 164983 168831 173901 175084 177674 181818 184548 187278 195804 212121 215306 223587 225108 228438 231868 237276 240786 243867 259308 262626 266511 276822 280917 282828 298116 306397 322959 325156 329966 337662 342657 347802 355348 363636 374556 393939 405769 415233 424242 430612 447174 456876 481572 487734 494949 521703 525252 533022 553644 561834 569023 612794 636363 645918 659932 675324 685314 695604 731601 753571 787878 799533 811538 830466 842751 848484 894348 919191 968877 975468 989898 1043406 1066044 1123668 1138046 1154881 1181817 1217307 1225588 1272726 1291836 1370628 1463202 1484847 1507142 1565109 1575756 1599066 1623076 1660932 1685502 1707069 1838382 1937754 1979796 2086812 2144779 2194803 2260713 2276092 2309762 2363634 2398599 2434614 2545452 2757573 2906631 2926404 2969694 3014284 3130218 3198132 3371004 3414138 3464643 3651921 3676764 3875508 3983161 4289558 4389606 4454541 4521426 4619524 4727268 4797198 4869228 5121207 5274997 5515146 5813262 5939388 6260436 6434337 6782139 6828276 6929286 7303842 7966322 8272719 8579116 8779212 8909082 9042852 9594396 10242414 10393929 10549994 10955763 11030292 11626524 11949483 12868674 13564278 13858572 14607684 15013453 15363621 15824991 15932644 16545438 17818164 19303011 20346417 20484828 20787858 21099988 21911526 23898966 25737348 27128556 27882127 30026906 30727242 31181787 31649982 33090876 35848449 38606022 40692834 41575716 43823052 45040359 47474973 47797932 55764254 57909033 60053812 61454484 62363574 63299964 71696898 77212044 81385668 83646381 90080718 94949946 107545347 111528508 115818066 124727148 135121077 142424919 143393796 167292762 180161436 189899892 195174889 215090694 231636132 250939143 270242154 284849838 334585524 390349778 405363231 430181388 501878286 540484308 569699676 585524667 752817429 780699556 810726462 1003756572 1171049334 1505634858 1621452924 1756574001 2342098668 3011269716 3513148002 5269722003 7026296004 10539444006 21078888012
• Sum of all divisors σ(n): 70930283200
• Sum of proper divisors (its aliquot sum) s(n): 49851395188
• 21078888012 is an abundant number, because the sum of its proper divisors (49851395188) is greater than itself. Its abundance is 28772507176

Bases of 21078888012

• Binary: 10011101000011001100100111001001100₂
• Hexadecimal: 0x4E8664E4C
• Base-36: 9OLTQ30

Squares and roots of 21078888012

• 21078888012 squared (21078888012²) is 444319519822437312144
• 21078888012 cubed (21078888012³) is 9365761399882770227573663617728
• The square root of 21078888012 is 145185.7018166733
• The cube root of 21078888012 is 2762.3745585485

Scales and comparisons

• 21,078,888,012 seconds is equal to 670 years, 12 weeks, 4 days, 14 hours, 40 minutes, 12 seconds.
• To count from 1 to 21,078,888,012 would take you about one thousand, three hundred forty 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 21078888012 cubic inches would be around 230.2 feet tall.

Recreational maths with 21078888012

• 21078888012 backwards is 21088887012
• The number of decimal digits it has is: 11
• The sum of 21078888012's digits is 45
• More coming soon!