18628964172

Names of 18628964172

• Cardinal: 18628964172 can be written as Eighteen billion, six hundred twenty-eight million, nine hundred sixty-four thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 1.8628964172 × 10¹⁰

Factors of 18628964172

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 9205

Divisors of 18628964172

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 23 26 27 28 36 39 42 46 52 54 63 69 78 81 84 91 92 108 117 126 138 156 161 162 182 189 207 234 243 252 273 276 299 322 324 351 364 378 414 468 483 486 546 567 598 621 644 702 756 819 828 897 966 972 1053 1092 1134 1196 1242 1404 1449 1638 1701 1794 1863 1932 2093 2106 2268 2457 2484 2691 2898 3159 3276 3402 3588 3726 4186 4212 4347 4914 5382 5589 5796 6279 6318 6804 7371 7452 8073 8372 8694 9157 9828 10764 11178 12558 12636 13041 14742 16146 17388 18314 18837 22113 22356 24219 25116 26082 27471 29484 32292 36628 37674 39123 44226 48438 52164 54942 56511 64099 72657 75348 78246 82413 88452 96876 109884 113022 119041 128198 145314 156492 164826 169533 192297 210611 226044 238082 247239 256396 290628 329652 339066 357123 384594 421222 476164 494478 508599 576891 631833 678132 714246 741717 769188 833287 842444 988956 1017198 1071369 1153782 1263666 1428492 1474277 1483434 1666574 1730673 1895499 2034396 2142738 2225151 2307564 2499861 2527332 2737943 2948554 2966868 3214107 3333148 3461346 3790998 4285476 4422831 4450302 4999722 5192019 5475886 5686497 5897108 6428214 6922692 7499583 7581996 8213829 8845662 8900604 9642321 9999444 10384038 10951772 11372994 12856428 13268493 14999166 15576057 16427658 17059491 17691324 19165601 19284642 20768076 22498749 22745988 24641487 26536986 28926963 29998332 31152114 32855316 34118982 38331202 38569284 39805479 44997498 49282974 51178473 53073972 57496803 57853926 62304228 67496247 68237964 73924461 76662404 79610958 89994996 98565948 102356946 114993606 115707852 119416437 134992494 147848922 159221916 172490409 202488741 204713892 221773383 229987212 238832874 269984988 295697844 344980818 358249311 404977482 443546766 477665748 517471227 665320149 689961636 716498622 809954964 887093532 1034942454 1330640298 1432997244 1552413681 2069884908 2661280596 3104827362 4657241043 6209654724 9314482086 18628964172
• Sum of all divisors σ(n): 62723361792
• Sum of proper divisors (its aliquot sum) s(n): 44094397620
• 18628964172 is an abundant number, because the sum of its proper divisors (44094397620) is greater than itself. Its abundance is 25465433448

Bases of 18628964172

• Binary: 10001010110010111110110111101001100₂
• Hexadecimal: 0x4565F6F4C
• Base-36: 8K37CR0

Squares and roots of 18628964172

• 18628964172 squared (18628964172²) is 347038306121659645584
• 18628964172 cubed (18628964172³) is 6464964171051965810762554016448
• The square root of 18628964172 is 136487.9634693111
• The cube root of 18628964172 is 2650.9176445595

Scales and comparisons

• 18,628,964,172 seconds is equal to 592 years, 17 weeks, 6 days, 16 minutes, 12 seconds.
• To count from 1 to 18,628,964,172 would take you about one thousand, one hundred eighty-four 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 18628964172 cubic inches would be around 220.9 feet tall.

Recreational maths with 18628964172

• 18628964172 backwards is 27146982681
• 18628964172 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18628964172's digits is 54
• More coming soon!