21531124951824

Names of 21531124951824

• Cardinal: 21531124951824 can be written as Twenty-one trillion, five hundred thirty-one billion, one hundred twenty-four million, nine hundred fifty-one thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 2.1531124951824 × 10¹³

Factors of 21531124951824

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 192659

Divisors of 21531124951824

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 179 204 272 358 408 537 716 769 816 1074 1432 1538 2148 2307 2864 3043 3076 4296 4614 6086 6152 8592 9129 9228 12172 12304 13073 18258 18456 24344 26146 36516 36912 39219 48688 52292 73032 78438 104584 137651 146064 156876 191689 209168 275302 313752 383378 412953 550604 575067 627504 766756 825906 1101208 1150134 1533512 1651812 2202416 2300268 2340067 3067024 3258713 3303624 4600536 4680134 6517426 6607248 7020201 9201072 9360268 9776139 13034852 14040402 18720536 19552278 26069704 28080804 34312331 37441072 39104556 52139408 56161608 68624662 78209112 102936993 112323216 137249324 147408841 156418224 205873986 274498648 294817682 411747972 442226523 548997296 583309627 589635364 823495944 884453046 1166619254 1179270728 1646991888 1749928881 1768906092 2333238508 2358541456 2505950297 3499857762 3537812184 4666477016 5011900594 6999715524 7075624368 7517850891 9332954032 10023801188 13999431048 15035701782 20047602376 26386182539 27998862096 30071403564 40095204752 52772365078 60142807128 79158547617 105544730156 120285614256 158317095234 211089460312 316634190468 422178920624 448565103163 633268380936 897130206326 1266536761872 1345695309489 1794260412652 2691390618978 3588520825304 5382781237956 7177041650608 10765562475912 21531124951824
• Sum of all divisors σ(n): 59300298288000
• Sum of proper divisors (its aliquot sum) s(n): 37769173336176
• 21531124951824 is an abundant number, because the sum of its proper divisors (37769173336176) is greater than itself. Its abundance is 16238048384352

Bases of 21531124951824

• Binary: 100111001010100011011000011011110101100010000₂
• Hexadecimal: 0x13951B0DEB10
• Base-36: 7MR9FVNDC

Squares and roots of 21531124951824

• 21531124951824 squared (21531124951824²) is 463589341691058046320926976
• 21531124951824 cubed (21531124951824³) is 9981600042284002052283256396571022004224
• The square root of 21531124951824 is 4640164.3237954407
• The cube root of 21531124951824 is 27819.9005894933

Scales and comparisons

• 21,531,124,951,824 seconds is equal to 684,623 years, 9 weeks, 2 hours, 10 minutes, 24 seconds.
• To count from 1 to 21,531,124,951,824 would take you about one million, seven hundred eleven thousand, five hundred fifty-seven 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 21531124951824 cubic inches would be around 2318.3 feet tall.

Recreational maths with 21531124951824

• 21531124951824 backwards is 42815942113512
• 21531124951824 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21531124951824's digits is 48
• More coming soon!