21445752960

Names of 21445752960

• Cardinal: 21445752960 can be written as Twenty-one billion, four hundred forty-five million, seven hundred fifty-two thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.144575296 × 10¹⁰

Factors of 21445752960

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 11573

Divisors of 21445752960

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 19 20 24 30 32 34 36 38 40 45 48 51 57 60 64 68 72 76 80 85 90 95 96 102 114 120 128 136 144 152 153 160 170 171 180 190 192 204 228 240 255 272 285 288 304 306 320 323 340 342 360 380 384 408 456 480 510 544 570 576 608 612 640 646 680 684 720 760 765 816 855 912 960 969 1020 1088 1140 1152 1216 1224 1292 1360 1368 1440 1520 1530 1615 1632 1710 1824 1920 1938 2040 2176 2280 2432 2448 2584 2720 2736 2880 2907 3040 3060 3230 3264 3420 3648 3876 4080 4560 4845 4896 5168 5440 5472 5760 5814 6080 6120 6460 6528 6840 7296 7752 8160 9120 9690 9792 10336 10880 10944 11527 11628 12160 12240 12920 13680 14535 15504 16320 18240 19380 19584 20672 21888 23054 23256 24480 25840 27360 29070 31008 32640 34581 36480 38760 41344 46108 46512 48960 51680 54720 57635 58140 62016 69162 77520 92216 93024 97920 103360 103743 109440 115270 116280 124032 138324 155040 172905 184432 186048 195959 206720 207486 219013 230540 232560 276648 310080 345810 368864 372096 391918 414972 438026 461080 465120 518715 553296 587877 620160 657039 691620 737728 783836 829944 876052 922160 930240 979795 1037430 1095065 1106592 1175754 1314078 1383240 1475456 1567672 1659888 1752104 1763631 1844320 1860480 1959590 1971117 2074860 2190130 2213184 2351508 2628156 2766480 2939385 3135344 3285195 3319776 3504208 3527262 3688640 3723221 3919180 3942234 4149720 4380260 4426368 4703016 5256312 5532960 5878770 6270688 6570390 6639552 7008416 7054524 7377280 7446442 7838360 7884468 8299440 8760520 8818155 9406032 9855585 10512624 11065920 11169663 11757540 12541376 13140780 13279104 14016832 14109048 14892884 15676720 15768936 16598880 17521040 17636310 18616105 18812064 19711170 21025248 22131840 22339326 23515080 25082752 26281560 28033664 28218096 29785768 31353440 31537872 33197760 33508989 35042080 35272620 37232210 37624128 39422340 42050496 44678652 47030160 52563120 55848315 56436192 59571536 62706880 63075744 66395520 67017978 70084160 70545240 74464420 75248256 78844680 84100992 89357304 94060320 105126240 111696630 112872384 119143072 125413760 126151488 134035956 140168320 141090480 148928840 157689360 167544945 178714608 188120640 210252480 223393260 225744768 238286144 252302976 268071912 282180960 297857680 315378720 335089890 357429216 376241280 420504960 446786520 476572288 536143824 564361920 595715360 630757440 670179780 714858432 893573040 1072287648 1128723840 1191430720 1261514880 1340359560 1429716864 1787146080 2144575296 2382861440 2680719120 3574292160 4289150592 5361438240 7148584320 10722876480 21445752960
• Sum of all divisors σ(n): 82545091200
• Sum of proper divisors (its aliquot sum) s(n): 61099338240
• 21445752960 is an abundant number, because the sum of its proper divisors (61099338240) is greater than itself. Its abundance is 39653585280

Bases of 21445752960

• Binary: 10011111110010001000011100010000000₂
• Hexadecimal: 0x4FE443880
• Base-36: 9UO8WW0

Squares and roots of 21445752960

• 21445752960 squared (21445752960²) is 459920320021348761600
• 21445752960 cubed (21445752960³) is 9863337564461987467275534336000
• The square root of 21445752960 is 146443.6852855049
• The cube root of 21445752960 is 2778.3082784023

Scales and comparisons

• 21,445,752,960 seconds is equal to 681 years, 47 weeks, 1 day, 17 hours, 36 minutes.
• To count from 1 to 21,445,752,960 would take you about one thousand, three hundred sixty-three 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 21445752960 cubic inches would be around 231.5 feet tall.

Recreational maths with 21445752960

• 21445752960 backwards is 06925754412
• 21445752960 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21445752960's digits is 45
• More coming soon!