18139524858

Names of 18139524858

• Cardinal: 18139524858 can be written as Eighteen billion, one hundred thirty-nine million, five hundred twenty-four thousand, eight hundred fifty-eight.

Scientific notation

• Scientific notation: 1.8139524858 × 10¹⁰

Factors of 18139524858

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 336

Divisors of 18139524858

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 6 7 9 13 14 17 18 21 26 27 34 39 42 51 53 54 63 78 91 102 106 117 119 126 153 159 182 189 221 234 238 241 273 289 306 318 351 357 371 378 442 459 477 482 546 578 663 689 702 714 723 742 819 867 901 918 954 1071 1113 1326 1378 1431 1446 1547 1638 1687 1734 1802 1989 2023 2067 2142 2169 2226 2457 2601 2703 2862 3094 3133 3213 3339 3374 3757 3978 4046 4097 4134 4338 4641 4823 4914 5061 5202 5406 5967 6069 6201 6266 6307 6426 6507 6678 7514 7803 8109 8194 9282 9399 9646 10017 10122 11271 11713 11934 12138 12291 12402 12614 12773 13014 13923 14469 15183 15317 15606 16218 18207 18603 18798 18921 20034 21931 22542 23426 24327 24582 25546 26299 27846 28197 28679 28938 30366 30634 33813 35139 36414 36873 37206 37842 38319 41769 43407 43862 45549 45951 48654 52598 53261 54621 56394 56763 57358 65793 67626 69649 70278 73746 76638 78897 81991 83538 84591 86037 86814 89411 91098 91902 101439 105417 106522 107219 109242 110619 113526 114957 130221 131586 137853 139298 157794 159783 163982 166049 169182 170289 172074 178822 197379 199121 202878 208947 210834 214438 217141 221238 229914 236691 245973 258111 260442 268233 275706 316251 319566 321657 332098 340578 344871 372827 394758 398242 413559 417894 434282 473382 479349 487543 491946 498147 516222 536466 592137 597363 626841 632502 643314 651423 689742 710073 737919 745654 774333 804699 827118 905437 958698 964971 975086 996294 1118481 1162343 1184274 1194726 1253682 1302846 1393847 1420146 1438047 1462629 1475838 1494441 1519987 1548666 1609398 1792089 1810874 1880523 1929942 1954269 2213757 2236962 2324686 2414097 2716311 2787694 2822833 2876094 2894913 2925258 2988882 3039974 3355443 3487029 3584178 3691397 3761046 3908538 4181541 4387887 4427514 4483323 4559961 4828194 5376267 5432622 5645666 5789826 5862807 6338059 6710886 6974058 7382794 8148933 8363082 8468499 8775774 8966646 9119922 10066329 10461087 10752534 11074191 11725614 12544623 12676118 13163661 13679883 16297866 16936998 19014177 19759831 20132658 20922174 22148382 24446799 25089246 25405497 25839779 26327322 27359766 31383261 33222573 37633869 38028354 39519662 41039649 47988161 48893598 50810994 51679558 57042531 59279493 62766522 66445146 75267738 76216491 77519337 82079298 95976322 99667719 114085062 118558986 143964483 152432982 155038674 171127593 177838479 199335438 232558011 287928966 335917127 342255186 355676958 431893449 465116022 533515437 671834254 697674033 863786898 1007751381 1067030874 1295680347 1395348066 2015502762 2591360694 3023254143 6046508286 9069762429 18139524858
• Sum of all divisors σ(n): 53919613440
• Sum of proper divisors (its aliquot sum) s(n): 35780088582
• 18139524858 is an abundant number, because the sum of its proper divisors (35780088582) is greater than itself. Its abundance is 17640563724

Bases of 18139524858

• Binary: 10000111001001100110010111011111010₂
• Hexadecimal: 0x439332EFA
• Base-36: 8BZSYYI

Squares and roots of 18139524858

• 18139524858 squared (18139524858²) is 329042362073999920164
• 18139524858 cubed (18139524858³) is 5968672106176357987304893436712
• The square root of 18139524858 is 134683.0533437671
• The cube root of 18139524858 is 2627.4954281391

Scales and comparisons

• 18,139,524,858 seconds is equal to 576 years, 40 weeks, 4 days, 4 hours, 54 minutes, 18 seconds.
• To count from 1 to 18,139,524,858 would take you about one thousand, one hundred fifty-three 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 18139524858 cubic inches would be around 219 feet tall.

Recreational maths with 18139524858

• 18139524858 backwards is 85842593181
• 18139524858 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18139524858's digits is 54
• More coming soon!