21388342364470560

Names of 21388342364470560

• Cardinal: 21388342364470560 can be written as Twenty-one quadrillion, three hundred eighty-eight trillion, three hundred forty-two billion, three hundred sixty-four million, four hundred seventy thousand, five hundred sixty.

Scientific notation

• Scientific notation: 2.138834236447056 × 10¹⁶

Factors of 21388342364470560

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 361473339

Divisors of 21388342364470560

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 131 160 240 262 393 480 524 655 786 941 1048 1310 1572 1882 1965 2096 2620 2823 3144 3764 3930 4192 4705 5240 5646 6288 7528 7860 9410 10480 11292 12576 14115 15056 15720 18820 20960 22584 28230 30112 31440 37640 45168 56460 62880 75280 90336 112920 123271 150560 225840 246542 369813 451680 493084 616355 739626 986168 1232710 1479252 1849065 1972336 2465420 2958504 3698130 3944672 4930840 5917008 7396260 9861680 11834016 14792520 19723360 29585040 59170080 361472257 722944514 1084416771 1445889028 1807361285 2168833542 2891778056 3614722570 4337667084 5422083855 5783556112 7229445140 8675334168 10844167710 11567112224 14458890280 17350668336 21688335420 28917780560 34701336672 43376670840 47352865667 57835561120 86753341680 94705731334 142058597001 173506683360 189411462668 236764328335 284117194002 340145393837 378822925336 473528656670 568234388004 680290787674 710292985005 757645850672 947057313340 1020436181511 1136468776008 1360581575348 1420585970010 1515291701344 1700726969185 1894114626680 2040872363022 2272937552016 2721163150696 2841171940020 3401453938370 3788229253360 4081744726044 4545875104032 5102180907555 5442326301392 5682343880040 6802907876740 7576458506720 8163489452088 10204361815110 10884652602784 11364687760080 13605815753480 16326978904176 20408723630220 22729375520160 27211631506960 32653957808352 40817447260440 44559046592647 54423263013920 81634894520880 89118093185294 133677139777941 163269789041760 178236186370588 222795232963235 267354279555882 356472372741176 445590465926470 534708559111764 668385698889705 712944745482352 891180931852940 1069417118223528 1336771397779410 1425889490964704 1782361863705880 2138834236447056 2673542795558820 3564723727411760 4277668472894112 5347085591117640 7129447454823520 10694171182235280 21388342364470560
• Sum of all divisors σ(n): 67959722550513024
• Sum of proper divisors (its aliquot sum) s(n): 46571380186042464
• 21388342364470560 is an abundant number, because the sum of its proper divisors (46571380186042464) is greater than itself. Its abundance is 25183037821571904

Bases of 21388342364470560

• Binary: 1001011111111001001010110000100111101111111110100100000₂
• Hexadecimal: 0x4BFC9584F7FD20
• Base-36: 5ULJ8U5659C

Squares and roots of 21388342364470560

• 21388342364470560 squared (21388342364470560²) is 457461189099806105261829106713600
• 21388342364470560 cubed (21388342364470560³) is 9784336530924460882500227556142773999405551616000
• The square root of 21388342364470560 is 146247537.9774666841
• The cube root of 21388342364470560 is 277582.6872145947

Scales and comparisons

• 21,388,342,364,470,560 seconds is equal to 680,083,128 years, 36 weeks, 4 days, 56 minutes.
• To count from 1 to 21,388,342,364,470,560 would take you about two billion, forty million, two hundred forty-nine thousand, three hundred eighty-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 21388342364470560 cubic inches would be around 23131.9 feet tall.

Recreational maths with 21388342364470560

• 21388342364470560 backwards is 06507446324388312
• The number of decimal digits it has is: 17
• The sum of 21388342364470560's digits is 66
• More coming soon!