81633629442672

Names of 81633629442672

• Cardinal: 81633629442672 can be written as Eighty-one trillion, six hundred thirty-three billion, six hundred twenty-nine million, four hundred forty-two thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 8.1633629442672 × 10¹³

Factors of 81633629442672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 13993

Divisors of 81633629442672

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 109 144 162 216 218 243 324 327 432 436 486 648 654 872 972 981 1296 1308 1744 1944 1962 2616 2943 3888 3924 5232 5886 7848 8829 11772 13879 15696 17658 23544 26487 27758 35316 41637 47088 52974 55516 70632 83274 105948 111032 124911 141264 166548 211896 222064 249822 333096 374733 423792 499644 666192 749466 999288 1124199 1498932 1512811 1998576 2248398 2997864 3025622 3372597 4496796 4538433 5995728 6051244 6745194 8993592 9076866 12102488 13490388 13615299 17987184 18153732 24204976 26980776 27230598 36307464 40845897 53961552 54461196 72614928 81691794 108922392 122537691 163383588 192626641 217844784 245075382 326767176 367613073 385253282 490150764 577879923 653534352 735226146 770506564 980301528 1155759846 1470452292 1541013128 1733639769 1960603056 2311519692 2940904584 3082026256 3467279538 4623039384 5200919307 5881809168 6934559076 9246078768 10401838614 13869118152 15602757921 20803677228 20996303869 27738236304 31205515842 41607354456 41992607738 46808273763 62411031684 62988911607 83214708912 83985215476 93616547526 124822063368 125977823214 167970430952 187233095052 188966734821 249644126736 251955646428 335940861904 374466190104 377933469642 503911292856 566900204463 748932380208 755866939284 1007822585712 1133800408926 1511733878568 1700700613389 2267600817852 3023467757136 3401401226778 4535201635704 5102101840167 6802802453556 9070403271408 10204203680334 13605604907112 20408407360668 27211209814224 40816814721336 81633629442672
• Sum of all divisors σ(n): 239113120286040
• Sum of proper divisors (its aliquot sum) s(n): 157479490843368
• 81633629442672 is an abundant number, because the sum of its proper divisors (157479490843368) is greater than itself. Its abundance is 75845861400696

Bases of 81633629442672

• Binary: 10010100011111011001111011111000001001001110000₂
• Hexadecimal: 0x4A3ECF7C1270
• Base-36: SXPYZ9300

Squares and roots of 81633629442672

• 81633629442672 squared (81633629442672²) is 6664049455983484829334499584
• 81633629442672 cubed (81633629442672³) is 544010543877395731464142052312071935848448
• The square root of 81633629442672 is 9035133.0617026333
• The cube root of 81633629442672 is 43380.0154053767

Scales and comparisons

• 81,633,629,442,672 seconds is equal to 2,595,696 years, 47 weeks, 1 day, 2 hours, 31 minutes, 12 seconds.
• To count from 1 to 81,633,629,442,672 would take you about six million, four hundred eighty-nine thousand, two 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 81633629442672 cubic inches would be around 3615 feet tall.

Recreational maths with 81633629442672

• 81633629442672 backwards is 27624492633618
• The number of decimal digits it has is: 14
• The sum of 81633629442672's digits is 63
• More coming soon!