21409310790

Names of 21409310790

• Cardinal: 21409310790 can be written as Twenty-one billion, four hundred nine million, three hundred ten thousand, seven hundred ninety.

Scientific notation

• Scientific notation: 2.140931079 × 10¹⁰

Factors of 21409310790

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1001

Divisors of 21409310790

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 49 63 70 73 90 98 105 126 146 147 210 219 245 294 315 365 438 441 490 511 630 657 730 735 882 911 1022 1095 1314 1470 1533 1822 2190 2205 2555 2733 3066 3285 3577 4410 4555 4599 5110 5329 5466 6377 6570 7154 7665 8199 9110 9198 10658 10731 12754 13665 15330 15987 16398 17885 19131 21462 22995 26645 27330 31885 31974 32193 35770 37303 38262 40995 44639 45990 47961 53290 53655 57393 63770 64386 66503 74606 79935 81990 89278 95655 95922 107310 111909 114786 133006 133917 159870 160965 186515 191310 199509 223195 223818 239805 261121 267834 286965 321930 332515 335727 373030 399018 401751 446390 465521 479610 522242 559545 573930 598527 665030 669585 671454 783363 803502 931042 997545 1119090 1197054 1305605 1339170 1396563 1566726 1678635 1995090 2008755 2327605 2350089 2611210 2793126 2992635 3258647 3357270 3916815 4017510 4189689 4655210 4700178 4854719 5985270 6517294 6982815 7833630 8379378 9709438 9775941 11750445 13965630 14564157 16293235 19551882 20948445 23500890 24273595 29128314 29327823 32586470 33983033 41896890 43692471 48547190 48879705 58655646 67966066 72820785 87384942 97759410 101949099 145641570 146639115 169915165 203898198 218462355 237881231 293278230 305847297 339830330 436924710 475762462 509745495 611694594 713643693 1019490990 1189406155 1427287386 1529236485 2140931079 2378812310 3058472970 3568218465 4281862158 7136436930 10704655395 21409310790
• Sum of all divisors σ(n): 65723475168
• Sum of proper divisors (its aliquot sum) s(n): 44314164378
• 21409310790 is an abundant number, because the sum of its proper divisors (44314164378) is greater than itself. Its abundance is 22904853588

Bases of 21409310790

• Binary: 10011111100000110000010100001000110₂
• Hexadecimal: 0x4FC182846
• Base-36: 9U2JTXI

Squares and roots of 21409310790

• 21409310790 squared (21409310790²) is 458358588502810424100
• 21409310790 cubed (21409310790³) is 9813141474522389158008606039000
• The square root of 21409310790 is 146319.2085476135
• The cube root of 21409310790 is 2776.7336855825

Scales and comparisons

• 21,409,310,790 seconds is equal to 680 years, 38 weeks, 6 days, 22 hours, 46 minutes, 30 seconds.
• To count from 1 to 21,409,310,790 would take you about one thousand, three hundred sixty-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 21409310790 cubic inches would be around 231.4 feet tall.

Recreational maths with 21409310790

• 21409310790 backwards is 09701390412
• The number of decimal digits it has is: 11
• The sum of 21409310790's digits is 36
• More coming soon!