81797079042

Names of 81797079042

• Cardinal: 81797079042 can be written as Eighty-one billion, seven hundred ninety-seven million, seventy-nine thousand and forty-two.

Scientific notation

• Scientific notation: 8.1797079042 × 10¹⁰

Factors of 81797079042

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 230

Divisors of 81797079042

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 37 42 53 54 61 63 67 74 81 106 111 122 126 134 159 162 183 189 201 222 243 259 318 333 366 371 378 402 427 469 477 486 518 549 567 603 666 729 742 777 854 938 954 999 1098 1113 1134 1206 1281 1407 1431 1458 1554 1647 1701 1809 1961 1998 2226 2257 2331 2479 2562 2814 2862 2997 3233 3294 3339 3402 3551 3618 3843 3922 4087 4221 4293 4514 4662 4941 4958 5103 5427 5883 5994 6466 6678 6771 6993 7102 7437 7686 8174 8442 8586 8991 9699 9882 10017 10206 10653 10854 11529 11766 12261 12663 12879 13542 13727 13986 14823 14874 15799 16281 17353 17649 17982 19398 20034 20313 20979 21306 22311 22631 23058 24522 24857 25326 25758 26973 27454 28609 29097 29646 30051 31598 31959 32562 34587 34706 35298 36783 37989 38637 40626 41181 41958 44469 44622 45262 47397 48843 49714 52059 52947 53946 57218 58194 60102 60939 62937 63918 66933 67893 69174 73566 74571 75978 77274 82362 85827 87291 88938 90153 94794 95877 97686 103761 104118 105894 110349 113967 119621 121878 123543 125874 131387 133866 135786 142191 149142 151219 156177 158841 171654 174582 180306 182817 188811 191754 200799 203679 207522 216611 220698 223713 227934 239242 247086 257481 261873 262774 270459 284382 287631 302438 311283 312354 317682 331047 341901 358863 365634 370629 377622 394161 401598 407358 426573 433222 447426 453657 468531 476523 514962 523746 540918 548451 575262 602397 611037 622566 649833 662094 671139 683802 717726 741258 772443 785619 788322 837347 853146 862893 907314 919709 937062 953046 993141 1058533 1076589 1096902 1111887 1182483 1204794 1222074 1279719 1299666 1342278 1360971 1405593 1429569 1516277 1544886 1571238 1645353 1674694 1725786 1807191 1833111 1839418 1949499 1986282 2013417 2117066 2153178 2223774 2317329 2356857 2364966 2512041 2559438 2588679 2721942 2759127 2811186 2859138 2979423 3032554 3175599 3229767 3290706 3335661 3547449 3614382 3666222 3839157 3898998 4026834 4082913 4216779 4548831 4634658 4713714 5024082 5177358 5499333 5518254 5848497 5958846 6040251 6351198 6459534 6671322 6951987 7094898 7536123 7678314 8014607 8165826 8277381 8433558 9097662 9526797 9689301 10006983 10642347 10998666 11517471 11696994 12080502 12248739 12650337 13646493 13903974 15072246 16029214 16497999 16554762 17545491 18120753 19053594 19378602 20013966 20855961 21284694 22608369 23034942 24043821 24497478 24832143 25300674 27292986 28580391 29067903 31927041 32995998 35090982 36241506 36746217 40939479 41711922 45216738 48087642 49664286 52636473 56102249 57160782 58135806 63854082 67825107 72131463 73492434 74496429 81878958 85741173 87203709 95781123 105272946 110238651 112204498 122818437 135650214 144262926 148992858 157909419 168306747 171482346 174407418 191562246 203475321 216394389 220477302 223489287 245636874 257223519 315818838 336613494 368455311 406950642 432788778 446978574 504920241 514447038 610425963 649183167 670467861 736910622 771670557 1009840482 1105365933 1220851926 1298366334 1340935722 1514760723 1543341114 1947549501 2210731866 3029521446 3895099002 4544282169 5842648503 9088564338 11685297006 13632846507 27265693014 40898539521 81797079042
• Sum of all divisors σ(n): 226939117824
• Sum of proper divisors (its aliquot sum) s(n): 145142038782
• 81797079042 is an abundant number, because the sum of its proper divisors (145142038782) is greater than itself. Its abundance is 63344959740

Bases of 81797079042

• Binary: 1001100001011011111000110000000000010₂
• Hexadecimal: 0x130B7C6002
• Base-36: 11KRVA4I

Squares and roots of 81797079042

• 81797079042 squared (81797079042²) is 6690762139803195637764
• 81797079042 cubed (81797079042³) is 547284799600703047906371508142088
• The square root of 81797079042 is 286001.8864308415
• The cube root of 81797079042 is 4340.8948412517

Scales and comparisons

• 81,797,079,042 seconds is equal to 2,600 years, 46 weeks, 3 days, 10 hours, 50 minutes, 42 seconds.
• To count from 1 to 81,797,079,042 would take you about five thousand, two hundred 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 81797079042 cubic inches would be around 361.7 feet tall.

Recreational maths with 81797079042

• 81797079042 backwards is 24097079718
• 81797079042 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81797079042's digits is 54
• More coming soon!