18055991772

Names of 18055991772

• Cardinal: 18055991772 can be written as Eighteen billion, fifty-five million, nine hundred ninety-one thousand, seven hundred seventy-two.

Scientific notation

• Scientific notation: 1.8055991772 × 10¹⁰

Factors of 18055991772

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1578

Divisors of 18055991772

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 39 42 49 52 54 63 78 84 91 98 108 117 126 147 156 169 182 189 196 234 252 273 294 338 351 364 378 441 468 507 546 588 637 676 702 756 819 882 1014 1092 1183 1274 1323 1404 1521 1553 1638 1764 1911 2028 2197 2366 2457 2548 2646 3042 3106 3276 3549 3822 4394 4563 4659 4732 4914 5292 5733 6084 6212 6591 7098 7644 8281 8788 9126 9318 9828 10647 10871 11466 13182 13977 14196 15379 16562 17199 18252 18636 19773 20189 21294 21742 22932 24843 26364 27954 30758 31941 32613 33124 34398 39546 40378 41931 42588 43484 46137 49686 55908 59319 60567 61516 63882 65226 68796 74529 76097 79092 80756 83862 92274 97839 99372 107653 118638 121134 127764 130452 138411 141323 149058 152194 167724 181701 184548 195678 215306 223587 228291 237276 242268 262457 276822 282646 293517 298116 304388 322959 363402 391356 415233 423969 430612 447174 456582 524914 545103 553644 565292 587034 645918 684873 726804 787371 830466 847938 894348 913164 968877 989261 1049828 1090206 1174068 1271907 1291836 1369746 1574742 1660932 1695876 1837199 1937754 1978522 2054619 2180412 2362113 2543814 2739492 2906631 2967783 3149484 3411941 3674398 3815721 3875508 3957044 4109238 4724226 5087628 5511597 5813262 5935566 6823882 7086339 7348796 7631442 8218476 8903349 9448452 10235823 11023194 11626524 11871132 12860393 13647764 14172678 15262884 16534791 17806698 20471646 22046388 23883587 25720786 26710047 28345356 30707469 33069582 35613396 38581179 40943292 47767174 49604373 51441572 53420094 61414938 66139164 71650761 77162358 92122407 95534348 99208746 106840188 115743537 122829876 143301522 154324716 167185109 184244814 198417492 214952283 231487074 286603044 334370218 347230611 368489628 429904566 462974148 501555327 644856849 668740436 694461222 859809132 1003110654 1289713698 1388922444 1504665981 2006221308 2579427396 3009331962 4513997943 6018663924 9027995886 18055991772
• Sum of all divisors σ(n): 59028379200
• Sum of proper divisors (its aliquot sum) s(n): 40972387428
• 18055991772 is an abundant number, because the sum of its proper divisors (40972387428) is greater than itself. Its abundance is 22916395656

Bases of 18055991772

• Binary: 10000110100001110001001000111011100₂
• Hexadecimal: 0x4343891DC
• Base-36: 8AM2KF0

Squares and roots of 18055991772

• 18055991772 squared (18055991772²) is 326018838870531699984
• 18055991772 cubed (18055991772³) is 5886593472163314148176276531648
• The square root of 18055991772 is 134372.5856415661
• The cube root of 18055991772 is 2623.4559879979

Scales and comparisons

• 18,055,991,772 seconds is equal to 574 years, 6 weeks, 3 days, 9 hours, 16 minutes, 12 seconds.
• To count from 1 to 18,055,991,772 would take you about one thousand, one hundred forty-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 18055991772 cubic inches would be around 218.6 feet tall.

Recreational maths with 18055991772

• 18055991772 backwards is 27719955081
• 18055991772 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18055991772's digits is 54
• More coming soon!