20637138690

Names of 20637138690

• Cardinal: 20637138690 can be written as Twenty billion, six hundred thirty-seven million, one hundred thirty-eight thousand, six hundred ninety.

Scientific notation

• Scientific notation: 2.063713869 × 10¹⁰

Factors of 20637138690

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 773

Divisors of 20637138690

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 73 81 90 105 126 135 146 162 189 210 219 270 315 365 378 405 438 511 567 630 657 683 730 810 945 1022 1095 1134 1314 1366 1533 1890 1971 2049 2190 2555 2835 3066 3285 3415 3942 4098 4599 4781 5110 5329 5670 5913 6147 6570 6830 7665 9198 9562 9855 10245 10658 11826 12294 13797 14343 15330 15987 18441 19710 20490 22995 23905 26645 27594 28686 29565 30735 31974 36882 37303 41391 43029 45990 47810 47961 49859 53290 55323 59130 61470 68985 71715 74606 79935 82782 86058 92205 95922 99718 110646 111909 129087 137970 143430 143883 149577 159870 184410 186515 206955 215145 223818 239805 249295 258174 276615 287766 299154 335727 349013 373030 387261 413910 430290 431649 448731 479610 498590 553230 559545 645435 671454 698026 719415 747885 774522 863298 897462 1007181 1047039 1119090 1290870 1346193 1438830 1495770 1678635 1745065 1936305 2014362 2094078 2158245 2243655 2692386 3021543 3141117 3357270 3490130 3639707 3872610 4038579 4316490 4487310 5035905 5235195 6043086 6282234 6730965 7279414 8077158 9423351 10071810 10470390 10919121 13461930 15107715 15705585 18198535 18846702 20192895 21838242 25477949 28270053 30215430 31411170 32757363 36397070 40385790 47116755 50955898 54595605 56540106 65514726 76433847 94233510 98272089 109191210 127389745 141350265 152867694 163786815 196544178 229301541 254779490 282700530 294816267 327573630 382169235 458603082 491360445 589632534 687904623 764338470 982720890 1146507705 1375809246 1474081335 2063713869 2293015410 2948162670 3439523115 4127427738 6879046230 10318569345 20637138690
• Sum of all divisors σ(n): 64393040448
• Sum of proper divisors (its aliquot sum) s(n): 43755901758
• 20637138690 is an abundant number, because the sum of its proper divisors (43755901758) is greater than itself. Its abundance is 23118763068

Bases of 20637138690

• Binary: 10011001110000100011011111100000010₂
• Hexadecimal: 0x4CE11BF02
• Base-36: 9HATI4I

Squares and roots of 20637138690

• 20637138690 squared (20637138690²) is 425891493310294916100
• 20637138690 cubed (20637138690³) is 8789181814335763388357613909000
• The square root of 20637138690 is 143656.3214411395
• The cube root of 20637138690 is 2742.9411777059

Scales and comparisons

• 20,637,138,690 seconds is equal to 656 years, 10 weeks, 1 day, 18 hours, 31 minutes, 30 seconds.
• To count from 1 to 20,637,138,690 would take you about one thousand, three hundred twelve 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 20637138690 cubic inches would be around 228.6 feet tall.

Recreational maths with 20637138690

• 20637138690 backwards is 09683173602
• 20637138690 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20637138690's digits is 45
• More coming soon!