18839428920

Names of 18839428920

• Cardinal: 18839428920 can be written as Eighteen billion, eight hundred thirty-nine million, four hundred twenty-eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.883942892 × 10¹⁰

Factors of 18839428920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1272

Divisors of 18839428920

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 29 30 36 39 40 45 52 58 60 65 72 78 87 90 104 116 117 120 127 130 145 156 174 180 195 232 234 254 260 261 290 312 348 360 377 381 390 435 468 508 520 522 580 585 635 696 754 762 780 870 936 1016 1044 1093 1131 1143 1160 1170 1270 1305 1508 1524 1560 1651 1740 1885 1905 2088 2186 2262 2286 2340 2540 2610 3016 3048 3279 3302 3393 3480 3683 3770 3810 4372 4524 4572 4680 4953 5080 5220 5465 5655 5715 6558 6604 6786 7366 7540 7620 8255 8744 9048 9144 9837 9906 10440 10930 11049 11310 11430 13116 13208 13572 14209 14732 14859 15080 15240 16395 16510 16965 18415 19674 19812 21860 22098 22620 22860 24765 26232 27144 28418 29464 29718 31697 32790 33020 33147 33930 36830 39348 39624 42627 43720 44196 45240 45720 47879 49185 49530 55245 56836 59436 63394 65580 66040 66294 67860 71045 73660 74295 78696 85254 88392 95091 95758 98370 99060 110490 113672 118872 126788 127881 131160 132588 135720 138811 142090 143637 147320 148590 158485 165735 170508 190182 191516 196740 198120 213135 220980 239395 253576 255762 265176 277622 284180 285273 287274 297180 316970 331470 341016 380364 383032 393480 412061 416433 426270 430911 441960 475455 478790 511524 555244 568360 570546 574548 594360 633940 639405 662940 694055 718185 760728 824122 832866 852540 861822 950910 957580 1023048 1110488 1141092 1149096 1236183 1249299 1267880 1278810 1325880 1388110 1426365 1436370 1648244 1665732 1705080 1723644 1804543 1901820 1915160 2060305 2082165 2154555 2282184 2472366 2498598 2557620 2776220 2852730 2872740 3296488 3331464 3447288 3609086 3708549 3803640 4025519 4120610 4164330 4309110 4944732 4997196 5115240 5413629 5552440 5705460 5745480 6180915 6246495 7218172 7417098 8051038 8241220 8328660 8618220 9022715 9889464 9994392 10827258 11410920 12076557 12361830 12492990 14436344 14834196 16102076 16240887 16482440 16657320 17236440 18045430 18542745 20127595 21654516 24153114 24723660 24985980 27068145 29668392 32204152 32481774 36090860 36229671 37085490 40255190 43309032 48306228 49447320 49971960 52331747 54136290 60382785 64963548 72181720 72459342 74170980 80510380 81204435 96612456 104663494 108272580 120765570 129927096 144918684 148341960 156995241 161020760 162408870 181148355 209326988 216545160 241531140 261658735 289837368 313990482 324817740 362296710 418653976 470985723 483062280 523317470 627980964 649635480 724593420 784976205 941971446 1046634940 1255961928 1449186840 1569952410 1883942892 2093269880 2354928615 3139904820 3767885784 4709857230 6279809640 9419714460 18839428920
• Sum of all divisors σ(n): 68811724800
• Sum of proper divisors (its aliquot sum) s(n): 49972295880
• 18839428920 is an abundant number, because the sum of its proper divisors (49972295880) is greater than itself. Its abundance is 31132866960

Bases of 18839428920

• Binary: 10001100010111010101101111100111000₂
• Hexadecimal: 0x462EADF38
• Base-36: 8NKICE0

Squares and roots of 18839428920

• 18839428920 squared (18839428920²) is 354924082031732366400
• 18839428920 cubed (18839428920³) is 6686567015433071101256196288000
• The square root of 18839428920 is 137256.7991758513
• The cube root of 18839428920 is 2660.8633882993

Scales and comparisons

• 18,839,428,920 seconds is equal to 599 years, 1 week, 5 days, 22 hours, 42 minutes.
• To count from 1 to 18,839,428,920 would take you about one thousand, one hundred ninety-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 18839428920 cubic inches would be around 221.7 feet tall.

Recreational maths with 18839428920

• 18839428920 backwards is 02982493881
• The number of decimal digits it has is: 11
• The sum of 18839428920's digits is 54
• More coming soon!