21321013896

Names of 21321013896

• Cardinal: 21321013896 can be written as Twenty-one billion, three hundred twenty-one million, thirteen thousand, eight hundred ninety-six.

Scientific notation

• Scientific notation: 2.1321013896 × 10¹⁰

Factors of 21321013896

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2966

Divisors of 21321013896

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 17 18 21 24 26 28 34 36 39 42 51 52 56 63 67 68 72 78 84 91 102 104 117 119 126 134 136 153 156 168 182 201 204 221 234 238 252 268 273 306 312 357 364 402 408 442 468 469 476 504 536 546 603 612 663 714 728 804 819 871 884 936 938 952 1071 1092 1139 1206 1224 1326 1407 1428 1547 1608 1638 1742 1768 1876 1989 2142 2184 2278 2412 2613 2652 2814 2856 2857 3094 3276 3417 3484 3752 3978 4221 4284 4556 4641 4824 5226 5304 5628 5714 6097 6188 6552 6834 6968 7839 7956 7973 8442 8568 8571 9112 9282 10251 10452 11256 11428 12194 12376 13668 13923 14807 15678 15912 15946 16884 17142 18291 18564 19999 20502 20904 22856 23919 24388 25713 27336 27846 29614 31356 31892 33768 34284 36582 37128 37141 39998 41004 44421 47838 48569 48776 51426 54873 55692 59228 59997 62712 63784 68568 71757 73164 74282 79996 82008 88842 95676 97138 102852 103649 109746 111384 111423 118456 119994 133263 143514 145707 146328 148564 159992 177684 179991 191352 191419 194276 205704 207298 219492 222846 239988 259987 266526 287028 291414 297128 310947 334269 339983 355368 359982 382838 388552 414596 437121 438984 445692 479976 519974 533052 574056 574257 582828 621894 631397 668538 679966 719964 765676 779961 829192 874242 891384 932841 1019949 1039948 1066104 1148514 1165656 1243788 1262794 1337076 1339933 1359932 1439928 1531352 1559922 1722771 1748484 1865682 1894191 2039898 2079896 2297028 2339883 2487576 2488447 2525588 2674152 2679866 2719864 3059847 3119844 3254123 3445542 3496968 3731364 3788382 4019799 4079796 4419779 4594056 4679766 4976894 5051176 5359732 5682573 6119694 6239688 6508246 6891084 7462728 7465341 7576764 8039598 8159592 8839558 9359532 9762369 9953788 10719464 11365146 12059397 12239388 13016492 13259337 13782168 14930682 15153528 16079196 17419129 17679116 18719064 19524738 19907576 22396023 22730292 22778861 24118794 24478776 26032984 26518674 29287107 29861364 32158392 34838258 35358232 39049476 39778011 42303599 44792046 45460584 45557722 48237588 52257387 53037348 58574214 59722728 68336583 69676516 78098952 79556022 84607198 89584092 91115444 96475176 104514774 106074696 117148428 126910797 136673166 139353032 156772161 159112044 169214396 179168184 182230888 205009749 209029548 234296856 253821594 273346332 296125193 313544322 318224088 338428792 380732391 410019498 418059096 507643188 546692664 592250386 627088644 761464782 820038996 888375579 1015286376 1184500772 1254177288 1522929564 1640077992 1776751158 2369001544 2665126737 3045859128 3553502316 5330253474 7107004632 10660506948 21321013896
• Sum of all divisors σ(n): 76400513280
• Sum of proper divisors (its aliquot sum) s(n): 55079499384
• 21321013896 is an abundant number, because the sum of its proper divisors (55079499384) is greater than itself. Its abundance is 33758485488

Bases of 21321013896

• Binary: 10011110110110101001101101010001000₂
• Hexadecimal: 0x4F6D4DA88
• Base-36: 9SLZBM0

Squares and roots of 21321013896

• 21321013896 squared (21321013896²) is 454585633553425098816
• 21321013896 cubed (21321013896³) is 9692226609914540390251109147136
• The square root of 21321013896 is 146017.1698671085
• The cube root of 21321013896 is 2772.9111308075

Scales and comparisons

• 21,321,013,896 seconds is equal to 677 years, 48 weeks, 6 days, 23 hours, 51 minutes, 36 seconds.
• To count from 1 to 21,321,013,896 would take you about one thousand, three hundred fifty-five 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 21321013896 cubic inches would be around 231.1 feet tall.

Recreational maths with 21321013896

• 21321013896 backwards is 69831012312
• 21321013896 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21321013896's digits is 36
• More coming soon!