18420652908

Names of 18420652908

• Cardinal: 18420652908 can be written as Eighteen billion, four hundred twenty million, six hundred fifty-two thousand, nine hundred eight.

Scientific notation

• Scientific notation: 1.8420652908 × 10¹⁰

Factors of 18420652908

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 10502

Divisors of 18420652908

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 37 42 49 54 63 74 81 84 98 108 111 126 147 148 162 189 196 222 243 252 259 294 324 333 378 441 444 486 518 567 588 666 756 777 882 972 999 1036 1134 1323 1332 1554 1701 1764 1813 1998 2268 2331 2646 2997 3108 3402 3626 3969 3996 4662 5292 5439 5994 6804 6993 7252 7938 8991 9324 10453 10878 11907 11988 13986 15876 16317 17982 20906 20979 21756 23814 27972 31359 32634 35964 41812 41958 47628 48951 62718 62937 65268 73171 83916 94077 97902 125436 125874 146342 146853 188154 195804 219513 251748 282231 292684 293706 376308 386761 439026 440559 512197 564462 587412 658539 773522 846693 878052 881118 1024394 1128924 1160283 1317078 1536591 1547044 1693386 1762236 1975617 2048788 2320566 2540079 2634156 2707327 3073182 3386772 3480849 3951234 4609773 4641132 5080158 5414654 5926851 6146364 6961698 7902468 8121981 9219546 10160316 10442547 10829308 11853702 13829319 13923396 16243962 17780553 18439092 18951289 20885094 23707404 24365943 27658638 31327641 32487924 35561106 37902578 41487957 41770188 48731886 55317276 56853867 62655282 71122212 73097829 75805156 82975914 93982923 97463772 113707734 124463871 125310564 146195658 165951828 170561601 187965846 219293487 227415468 248927742 292391316 341123202 375931692 438586974 497855484 511684803 657880461 682246404 877173948 1023369606 1315760922 1535054409 2046739212 2631521844 3070108818 4605163227 6140217636 9210326454 18420652908
• Sum of all divisors σ(n): 57695291472
• Sum of proper divisors (its aliquot sum) s(n): 39274638564
• 18420652908 is an abundant number, because the sum of its proper divisors (39274638564) is greater than itself. Its abundance is 20853985656

Bases of 18420652908

• Binary: 10001001001111101001101101101101100₂
• Hexadecimal: 0x449F4DB6C
• Base-36: 8GN6IR0

Squares and roots of 18420652908

• 18420652908 squared (18420652908²) is 339320453557008856464
• 18420652908 cubed (18420652908³) is 6250504299558794135605336197312
• The square root of 18420652908 is 135722.7059411947
• The cube root of 18420652908 is 2640.9996266125

Scales and comparisons

• 18,420,652,908 seconds is equal to 585 years, 37 weeks, 3 days, 1 minute, 48 seconds.
• To count from 1 to 18,420,652,908 would take you about one thousand, one hundred seventy-one 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 18420652908 cubic inches would be around 220.1 feet tall.

Recreational maths with 18420652908

• 18420652908 backwards is 80925602481
• The number of decimal digits it has is: 11
• The sum of 18420652908's digits is 45
• More coming soon!