21236318208

Names of 21236318208

• Cardinal: 21236318208 can be written as Twenty-one billion, two hundred thirty-six million, three hundred eighteen thousand, two hundred eight.

Scientific notation

• Scientific notation: 2.1236318208 × 10¹⁰

Factors of 21236318208

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 23
• Sum of prime factors: 139

Divisors of 21236318208

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 81 84 96 108 112 126 127 128 144 162 168 189 192 216 224 243 252 254 256 288 324 336 378 381 384 432 448 486 504 508 512 567 576 648 672 729 756 762 768 864 889 896 972 1008 1016 1024 1134 1143 1152 1296 1344 1458 1512 1524 1536 1701 1728 1778 1792 1944 2016 2032 2048 2268 2286 2304 2592 2667 2688 2916 3024 3048 3072 3402 3429 3456 3556 3584 3888 4032 4064 4096 4536 4572 4608 5103 5184 5334 5376 5832 6048 6096 6144 6804 6858 6912 7112 7168 7776 8001 8064 8128 8192 9072 9144 9216 10206 10287 10368 10668 10752 11664 12096 12192 12288 13608 13716 13824 14224 14336 15552 16002 16128 16256 16384 18144 18288 18432 20412 20574 20736 21336 21504 23328 24003 24192 24384 24576 27216 27432 27648 28448 28672 30861 31104 32004 32256 32512 32768 36288 36576 36864 40824 41148 41472 42672 43008 46656 48006 48384 48768 49152 54432 54864 55296 56896 57344 61722 62208 64008 64512 65024 72009 72576 73152 73728 81648 82296 82944 85344 86016 92583 93312 96012 96768 97536 98304 108864 109728 110592 113792 114688 123444 124416 128016 129024 130048 144018 145152 146304 147456 163296 164592 165888 170688 172032 185166 186624 192024 193536 195072 216027 217728 219456 221184 227584 229376 246888 248832 256032 258048 260096 288036 290304 292608 294912 326592 329184 331776 341376 344064 370332 373248 384048 387072 390144 432054 435456 438912 442368 455168 493776 497664 512064 516096 520192 576072 580608 585216 648081 653184 658368 663552 682752 688128 740664 746496 768096 774144 780288 864108 870912 877824 884736 910336 987552 995328 1024128 1032192 1040384 1152144 1161216 1170432 1296162 1306368 1316736 1327104 1365504 1481328 1492992 1536192 1548288 1560576 1728216 1741824 1755648 1820672 1975104 1990656 2048256 2064384 2080768 2304288 2322432 2340864 2592324 2612736 2633472 2654208 2731008 2962656 2985984 3072384 3096576 3121152 3456432 3483648 3511296 3641344 3950208 3981312 4096512 4161536 4608576 4644864 4681728 5184648 5225472 5266944 5462016 5925312 5971968 6144768 6193152 6242304 6912864 6967296 7022592 7282688 7900416 7962624 8193024 9217152 9289728 9363456 10369296 10450944 10533888 10924032 11850624 11943936 12289536 12484608 13825728 13934592 14045184 14565376 15800832 16386048 18434304 18579456 18726912 20738592 20901888 21067776 21848064 23701248 23887872 24579072 27651456 27869184 28090368 29130752 31601664 32772096 36868608 37453824 41477184 41803776 42135552 43696128 47402496 49158144 55302912 55738368 56180736 63203328 65544192 73737216 82954368 83607552 84271104 87392256 94804992 98316288 110605824 112361472 126406656 131088384 147474432 165908736 167215104 168542208 189609984 196632576 221211648 252813312 262176768 294948864 331817472 337084416 379219968 393265152 442423296 505626624 589897728 663634944 758439936 786530304 884846592 1011253248 1179795456 1327269888 1516879872 1769693184 2359590912 2654539776 3033759744 3539386368 5309079552 7078772736 10618159104 21236318208
• Sum of all divisors σ(n): 73348869120
• Sum of proper divisors (its aliquot sum) s(n): 52112550912
• 21236318208 is an abundant number, because the sum of its proper divisors (52112550912) is greater than itself. Its abundance is 30876232704

Bases of 21236318208

• Binary: 10011110001110010001000000000000000₂
• Hexadecimal: 0x4F1C88000
• Base-36: 9R7K000

Squares and roots of 21236318208

• 21236318208 squared (21236318208²) is 450981211031432331264
• 21236318208 cubed (21236318208³) is 9577180503292696876741570854912
• The square root of 21236318208 is 145726.8616556331
• The cube root of 21236318208 is 2769.2345501487

Scales and comparisons

• 21,236,318,208 seconds is equal to 675 years, 12 weeks, 6 days, 17 hours, 16 minutes, 48 seconds.
• To count from 1 to 21,236,318,208 would take you about one thousand, three hundred fifty 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 21236318208 cubic inches would be around 230.8 feet tall.

Recreational maths with 21236318208

• 21236318208 backwards is 80281363212
• 21236318208 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21236318208's digits is 36
• More coming soon!