21097965672

Names of 21097965672

• Cardinal: 21097965672 can be written as Twenty-one billion, ninety-seven million, nine hundred sixty-five thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1097965672 × 10¹⁰

Factors of 21097965672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 264

Divisors of 21097965672

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 49 53 54 56 63 72 81 84 98 106 108 126 147 159 162 168 189 196 199 212 216 243 252 294 318 324 343 371 378 392 398 424 441 477 486 504 567 588 597 636 648 686 729 742 756 796 882 954 972 1029 1113 1134 1176 1194 1272 1323 1372 1393 1431 1458 1484 1512 1592 1701 1764 1791 1908 1944 2058 2226 2268 2388 2597 2646 2744 2786 2862 2916 2968 3087 3339 3402 3528 3582 3816 3969 4116 4179 4293 4452 4536 4776 5103 5194 5292 5373 5572 5724 5832 6174 6678 6804 7164 7791 7938 8232 8358 8586 8904 9261 9751 10017 10206 10388 10547 10584 10746 11144 11448 11907 12348 12537 12879 13356 13608 14328 15582 15876 16119 16716 17172 18179 18522 19502 20034 20412 20776 21094 21492 23373 23814 24696 25074 25758 26712 27783 29253 30051 31164 31641 31752 32238 33432 34344 35721 36358 37044 37611 38637 39004 40068 40824 42188 42984 46746 47628 48357 50148 51516 54537 55566 58506 60102 62328 63282 64476 68257 70119 71442 72716 73829 74088 75222 77274 78008 80136 83349 84376 87759 90153 93492 94923 95256 96714 100296 103032 109074 111132 112833 117012 120204 126564 128952 136514 140238 142884 145071 145432 147658 150444 154548 163611 166698 175518 180306 186984 189846 193428 204771 210357 218148 221487 222264 225666 234024 240408 250047 253128 263277 270459 273028 280476 284769 285768 290142 295316 300888 309096 327222 333396 338499 351036 360612 379692 386856 409542 420714 436296 442974 451332 490833 500094 516803 526554 540918 546056 560952 569538 580284 590632 614313 631071 654444 664461 666792 676998 702072 721224 759384 789831 819084 841428 854307 885948 902664 981666 1000188 1015497 1033606 1053108 1081836 1139076 1160568 1228626 1262142 1308888 1328922 1353996 1472499 1550409 1579662 1638168 1682856 1708614 1771896 1842939 1893213 1963332 1993383 2000376 2030994 2067212 2106216 2163672 2278152 2369493 2457252 2524284 2562921 2657844 2707992 2944998 3100818 3159324 3417228 3617621 3685878 3786426 3926664 3986766 4061988 4134424 4417497 4651227 4738986 4914504 5048568 5125842 5315688 5528817 5889996 5980149 6201636 6318648 6834456 7108479 7235242 7371756 7572852 7688763 7973532 8123976 8834994 9302454 9477972 10251684 10852863 11057634 11779992 11960298 12403272 13252491 13953681 14216958 14470484 14743512 15145704 15377526 15947064 16586451 17669988 17940447 18604908 18955944 20503368 21705726 22115268 23920596 26504982 27907362 28433916 28940968 30755052 32558589 33172902 35339976 35880894 37209816 41861043 43411452 44230536 47841192 49759353 53009964 53821341 55814724 56867832 61510104 65117178 66345804 71761788 83722086 86822904 97675767 99518706 106019928 107642682 111629448 125583129 130234356 132691608 143523576 167444172 195351534 199037412 215285364 251166258 260468712 293027301 334888344 376749387 390703068 398074824 430570728 502332516 586054602 753498774 781406136 879081903 1004665032 1172109204 1506997548 1758163806 2344218408 2637245709 3013995096 3516327612 5274491418 7032655224 10548982836 21097965672
• Sum of all divisors σ(n): 70826400000
• Sum of proper divisors (its aliquot sum) s(n): 49728434328
• 21097965672 is an abundant number, because the sum of its proper divisors (49728434328) is greater than itself. Its abundance is 28630468656

Bases of 21097965672

• Binary: 10011101001100010010110100001101000₂
• Hexadecimal: 0x4E9896868
• Base-36: 9OX6MI0

Squares and roots of 21097965672

• 21097965672 squared (21097965672²) is 445124155496890411584
• 21097965672 cubed (21097965672³) is 9391214152451384006345183144448
• The square root of 21097965672 is 145251.3878487913
• The cube root of 21097965672 is 2763.2076789009

Scales and comparisons

• 21,097,965,672 seconds is equal to 670 years, 44 weeks, 1 day, 10 hours, 1 minute, 12 seconds.
• To count from 1 to 21,097,965,672 would take you about one thousand, three hundred forty-one 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 21097965672 cubic inches would be around 230.3 feet tall.

Recreational maths with 21097965672

• 21097965672 backwards is 27656979012
• 21097965672 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21097965672's digits is 54
• More coming soon!