21112121394

Names of 21112121394

• Cardinal: 21112121394 can be written as Twenty-one billion, one hundred twelve million, one hundred twenty-one thousand, three hundred ninety-four.

Scientific notation

• Scientific notation: 2.1112121394 × 10¹⁰

Factors of 21112121394

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 144

Divisors of 21112121394

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 29 31 39 42 54 58 59 62 63 78 81 87 91 93 117 118 126 162 174 177 182 186 189 203 217 234 243 261 273 279 351 354 377 378 403 406 413 434 486 522 531 546 558 567 609 651 702 729 754 767 783 806 819 826 837 899 1053 1062 1131 1134 1209 1218 1239 1302 1458 1534 1566 1593 1638 1674 1701 1711 1798 1827 1829 1953 2106 2187 2262 2301 2349 2418 2457 2478 2511 2639 2697 2821 3159 3186 3393 3402 3422 3627 3654 3658 3717 3906 4374 4602 4698 4779 4914 5022 5103 5133 5278 5369 5394 5481 5487 5642 5859 6293 6318 6786 6903 7047 7254 7371 7434 7533 7917 8091 8463 9477 9558 10179 10206 10266 10738 10881 10962 10974 11151 11687 11718 11977 12586 12803 13806 14094 14337 14742 15066 15309 15399 15834 16107 16182 16443 16461 16926 17577 18879 18954 20358 20709 21141 21762 22113 22243 22302 22599 23374 23751 23777 23954 24273 25389 25606 28431 28674 30537 30618 30798 32214 32643 32886 32922 33453 35061 35154 35931 37758 38409 41418 42282 43011 44226 44486 45198 46197 47502 47554 48321 48546 49329 49383 50778 52731 53041 56637 56862 61074 62127 63423 65286 66339 66729 66906 67797 70122 71253 71331 71862 72819 76167 76818 81809 86022 91611 92394 96642 97929 98658 98766 100359 105183 105462 106082 107793 113274 115227 124254 126846 129033 132678 133458 135594 138591 142506 142662 144963 145638 147987 148149 152334 155701 158193 159123 163618 166439 169911 183222 186381 195858 199017 200187 200718 210366 213759 213993 215586 218457 228501 230454 245427 258066 274833 277182 289926 293787 295974 296298 301077 311402 315549 316386 318246 323379 332878 339822 345681 371287 372762 398034 400374 415773 427518 427986 434889 436914 443961 444447 457002 467103 474579 477369 490854 499317 509733 549666 559143 587574 600561 602154 631098 641277 641979 646758 655371 685503 689533 691362 736281 742574 824499 831546 869778 881361 887922 888894 903231 934206 946647 949158 954738 970137 998634 1019466 1037043 1113861 1118286 1201122 1247319 1282554 1283958 1304667 1310742 1333341 1371006 1379066 1401309 1432107 1472562 1497951 1529199 1648998 1677429 1762722 1801683 1806462 1893294 1923831 1925937 1940274 1966113 2056509 2068599 2074086 2208843 2227722 2494638 2609334 2666682 2802618 2839941 2864214 2910411 2995902 3058398 3111129 3341583 3354858 3603366 3741957 3847662 3851874 3914001 3932226 4000023 4113018 4137198 4203927 4296321 4417686 4493853 4587597 4826731 5405049 5679882 5771493 5777811 5820822 6169527 6205797 6222258 6626529 6683166 7483914 7828002 8000046 8407854 8519823 8592642 8731233 8987706 9175194 9333387 9653462 10024749 10810098 11542986 11555622 11742003 12339054 12411594 12611781 12888963 13253058 13481559 13762791 14480193 16215147 17039646 17333433 17462466 18617391 18666774 19879587 20049498 23484006 25223562 25559469 25777926 26193699 26963118 27525582 28000161 28960386 30074247 32430294 34666866 37234782 37835343 38666889 39759174 40444677 43440579 48645441 51118938 52000299 52387398 55852173 56000322 59638761 60148494 75670686 77333778 80889354 86881158 90222741 97290882 104000598 111704346 113506029 116000667 119277522 121334031 130321737 167556519 178916283 180445482 227012058 232001334 242668062 260643474 270668223 335113038 340518087 357832566 364002093 390965211 502669557 541336446 681036174 728004186 781930422 812004669 1005339114 1172895633 1508008671 1624009338 2345791266 3016017342 3518686899 7037373798 10556060697 21112121394
• Sum of all divisors σ(n): 63479808000
• Sum of proper divisors (its aliquot sum) s(n): 42367686606
• 21112121394 is an abundant number, because the sum of its proper divisors (42367686606) is greater than itself. Its abundance is 21255565212

Bases of 21112121394

• Binary: 10011101010011000010110100000110010₂
• Hexadecimal: 0x4EA616832
• Base-36: 9P5M14I

Squares and roots of 21112121394

• 21112121394 squared (21112121394²) is 445721669754992503236
• 21112121394 cubed (21112121394³) is 9410129999803779965878369830984
• The square root of 21112121394 is 145300.1080316185
• The cube root of 21112121394 is 2763.8255339659

Scales and comparisons

• 21,112,121,394 seconds is equal to 671 years, 15 weeks, 4 days, 6 hours, 9 minutes, 54 seconds.
• To count from 1 to 21,112,121,394 would take you about one thousand, three hundred forty-two 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 21112121394 cubic inches would be around 230.3 feet tall.

Recreational maths with 21112121394

• 21112121394 backwards is 49312121112
• 21112121394 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21112121394's digits is 27
• More coming soon!