21168508160

Names of 21168508160

• Cardinal: 21168508160 can be written as Twenty-one billion, one hundred sixty-eight million, five hundred eight thousand, one hundred sixty.

Scientific notation

• Scientific notation: 2.116850816 × 10¹⁰

Factors of 21168508160

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2046

Divisors of 21168508160

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 16 20 23 32 40 46 64 80 92 115 128 160 184 230 256 320 368 460 463 640 736 920 926 1280 1472 1553 1840 1852 2315 2944 3106 3680 3704 4630 5888 6212 7360 7408 7765 9260 10649 12424 14720 14816 15530 18520 21298 24848 29440 29632 31060 35719 37040 42596 49696 53245 59264 62120 71438 74080 85192 99392 106490 118528 124240 142876 148160 170384 178595 198784 212980 248480 285752 296320 340768 357190 397568 425960 496960 571504 592640 681536 714380 719039 851920 993920 1143008 1363072 1428760 1438078 1703840 1987840 2286016 2726144 2857520 2876156 3407680 3595195 4572032 5715040 5752312 6815360 7190390 9144064 11430080 11504624 13630720 14380780 16537897 22860160 23009248 28761560 33075794 45720320 46018496 57523120 66151588 82689485 92036992 115046240 132303176 165378970 184073984 230092480 264606352 330757940 460184960 529212704 661515880 920369920 1058425408 1323031760 2116850816 2646063520 4233701632 5292127040 10584254080 21168508160
• Sum of all divisors σ(n): 53058184704
• Sum of proper divisors (its aliquot sum) s(n): 31889676544
• 21168508160 is an abundant number, because the sum of its proper divisors (31889676544) is greater than itself. Its abundance is 10721168384

Bases of 21168508160

• Binary: 10011101101101111011100110100000000₂
• Hexadecimal: 0x4EDBDCD00
• Base-36: 9Q36LFK

Squares and roots of 21168508160

• 21168508160 squared (21168508160²) is 448105737719986585600
• 21168508160 cubed (21168508160³) is 9485729965468355832364138496000
• The square root of 21168508160 is 145494.0141724049
• The cube root of 21168508160 is 2766.2839107279

Scales and comparisons

• 21,168,508,160 seconds is equal to 673 years, 4 weeks, 5 days, 21 hours, 9 minutes, 20 seconds.
• To count from 1 to 21,168,508,160 would take you about one thousand, three hundred forty-six 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 21168508160 cubic inches would be around 230.5 feet tall.

Recreational maths with 21168508160

• 21168508160 backwards is 06180586112
• The number of decimal digits it has is: 11
• The sum of 21168508160's digits is 38
• More coming soon!