21067487320

Names of 21067487320

• Cardinal: 21067487320 can be written as Twenty-one billion, sixty-seven million, four hundred eighty-seven thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.106748732 × 10¹⁰

Factors of 21067487320

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 261

Divisors of 21067487320

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 11 17 20 22 29 34 40 44 55 58 68 85 88 110 116 136 145 170 187 197 220 232 289 290 319 340 374 394 440 493 578 580 638 680 748 788 841 935 985 986 1156 1160 1276 1445 1496 1576 1595 1682 1870 1970 1972 2167 2312 2465 2552 2890 3179 3190 3349 3364 3740 3940 3944 4205 4334 4930 5423 5713 5780 6358 6380 6698 6728 7480 7880 8381 8410 8668 9251 9860 10835 10846 11426 11560 12716 12760 13396 14297 15895 16745 16762 16820 17336 18502 19720 21670 21692 22852 25432 26792 27115 28565 28594 31790 33490 33524 33640 36839 37004 41905 43340 43384 45704 46255 54230 56933 57130 57188 62843 63580 66980 67048 71485 73678 74008 83810 86680 92191 92510 97121 108460 113866 114260 114376 125686 127160 133960 142970 147356 157267 165677 167620 184195 184382 185020 194242 216920 227732 228520 243049 251372 284665 285940 294712 314215 314534 331354 335240 368390 368764 370040 388484 455464 460955 485605 486098 502744 569330 571880 626263 628430 629068 662708 736780 737528 776968 786335 828385 921910 971210 972196 1068331 1138660 1215245 1252526 1256860 1258136 1325416 1473560 1572670 1651057 1656770 1822447 1843820 1942420 1944392 2136662 2277320 2430490 2505052 2513720 2673539 2816509 3131315 3145340 3302114 3313540 3644894 3687640 3884840 4273324 4860980 5010104 5341655 5347078 5633018 6262630 6290680 6604228 6627080 7289788 8255285 8546648 9112235 9721960 10683310 10694156 11266036 12525260 13208456 13367695 14082545 14579576 16510570 18161627 18224470 21366620 21388312 22532072 25050520 26735390 28165090 30981599 33021140 36323254 36448940 42733240 47880653 53470780 56330180 61963198 66042280 72646508 72897880 90808135 95761306 106941560 112660360 123926396 145293016 154907995 181616270 191522612 239403265 247852792 309815990 363232540 383045224 478806530 526687183 619631980 726465080 957613060 1053374366 1239263960 1915226120 2106748732 2633435915 4213497464 5266871830 10533743660 21067487320
• Sum of all divisors σ(n): 57180174480
• Sum of proper divisors (its aliquot sum) s(n): 36112687160
• 21067487320 is an abundant number, because the sum of its proper divisors (36112687160) is greater than itself. Its abundance is 15045199840

Bases of 21067487320

• Binary: 10011100111101110000101100001011000₂
• Hexadecimal: 0x4E7B85858
• Base-36: 9OF1D94

Squares and roots of 21067487320

• 21067487320 squared (21067487320²) is 443839021978360782400
• 21067487320 cubed (21067487320³) is 9350572967650317097597279168000
• The square root of 21067487320 is 145146.4340588497
• The cube root of 21067487320 is 2761.8764509797

Scales and comparisons

• 21,067,487,320 seconds is equal to 669 years, 45 weeks, 5 days, 15 hours, 48 minutes, 40 seconds.
• To count from 1 to 21,067,487,320 would take you about one thousand, three hundred thirty-nine 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 21067487320 cubic inches would be around 230.2 feet tall.

Recreational maths with 21067487320

• 21067487320 backwards is 02378476012
• 21067487320 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21067487320's digits is 40
• More coming soon!