18213318816

Names of 18213318816

• Cardinal: 18213318816 can be written as Eighteen billion, two hundred thirteen million, three hundred eighteen thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.8213318816 × 10¹⁰

Factors of 18213318816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2932

Divisors of 18213318816

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 48 49 56 66 77 84 88 96 98 112 121 132 147 154 168 176 196 224 231 242 264 294 308 336 352 363 392 462 484 528 539 588 616 672 726 784 847 924 968 1056 1078 1176 1232 1331 1452 1568 1617 1694 1848 1936 2156 2352 2464 2541 2662 2904 2909 3234 3388 3696 3872 3993 4312 4704 5082 5324 5808 5818 5929 6468 6776 7392 7986 8624 8727 9317 10164 10648 11616 11636 11858 12936 13552 15972 17248 17454 17787 18634 20328 20363 21296 23272 23716 25872 27104 27951 31944 31999 34908 35574 37268 40656 40726 42592 46544 47432 51744 55902 61089 63888 63998 65219 69816 71148 74536 81312 81452 93088 94864 95997 111804 122178 127776 127996 130438 139632 142296 142541 149072 162904 189728 191994 195657 223608 223993 244356 255992 260876 279264 284592 285082 298144 325808 351989 383988 391314 427623 447216 447986 488712 511984 521752 569184 570164 651616 671979 703978 767976 782628 855246 894432 895972 977424 1023968 1043504 1055967 1140328 1343958 1407956 1535952 1565256 1567951 1710492 1791944 1954848 2087008 2111934 2280656 2463923 2687916 2815912 3071904 3130512 3135902 3420984 3583888 3871879 4223868 4561312 4703853 4927846 5375832 5631824 6261024 6271804 6841968 7167776 7391769 7743758 8447736 9407706 9855692 10751664 11263648 11615637 12543608 13683936 14783538 15487516 16895472 17247461 18815412 19711384 21503328 23231274 25087216 27103153 29567076 30975032 33790944 34494922 37630824 39422768 46462548 50174432 51742383 54206306 59134152 61950064 68989844 75261648 78845536 81309459 92925096 103484766 108412612 118268304 123900128 137979688 150523296 162618918 185850192 189722071 206969532 216825224 236536608 275959376 325237836 371700384 379444142 413939064 433650448 551918752 569166213 650475672 758888284 827878128 867300896 1138332426 1300951344 1517776568 1655756256 2276664852 2601902688 3035553136 4553329704 6071106272 9106659408 18213318816
• Sum of all divisors σ(n): 61194087360
• Sum of proper divisors (its aliquot sum) s(n): 42980768544
• 18213318816 is an abundant number, because the sum of its proper divisors (42980768544) is greater than itself. Its abundance is 24767449728

Bases of 18213318816

• Binary: 10000111101100110010011000010100000₂
• Hexadecimal: 0x43D9930A0
• Base-36: 8D7QMQO

Squares and roots of 18213318816

• 18213318816 squared (18213318816²) is 331724982293259641856
• 18213318816 cubed (18213318816³) is 6041812861739092664989305962496
• The square root of 18213318816 is 134956.7294209519
• The cube root of 18213318816 is 2631.0536057221

Scales and comparisons

• 18,213,318,816 seconds is equal to 579 years, 6 weeks, 4 days, 7 hours, 13 minutes, 36 seconds.
• To count from 1 to 18,213,318,816 would take you about one thousand, one hundred fifty-eight 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 18213318816 cubic inches would be around 219.3 feet tall.

Recreational maths with 18213318816

• 18213318816 backwards is 61881331281
• 18213318816 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18213318816's digits is 42
• More coming soon!