21546552137920

Names of 21546552137920

• Cardinal: 21546552137920 can be written as Twenty-one trillion, five hundred forty-six billion, five hundred fifty-two million, one hundred thirty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.154655213792 × 10¹³

Factors of 21546552137920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 467

Divisors of 21546552137920

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 5 8 10 16 20 29 32 40 58 64 80 116 145 160 232 290 320 431 464 580 841 862 928 1160 1682 1724 1856 2155 2320 3364 3448 4205 4310 4640 6728 6896 8410 8620 9280 12499 13456 13792 16820 17240 24998 26912 27584 33640 34480 49996 53824 62495 67280 68960 99992 124990 134560 137920 185761 199984 249980 269120 362471 371522 399968 499960 724942 743044 799936 928805 999920 1449884 1486088 1812355 1857610 1999840 2899768 2972176 3624710 3715220 3999680 5387069 5799536 5944352 7249420 7430440 10774138 11599072 11888704 14498840 14860880 21548276 23198144 26935345 28997680 29721760 43096552 53870690 57995360 59443520 80062991 86193104 107741380 115990720 156225001 160125982 172386208 215482760 312450002 320251964 344772416 400314955 430965520 624900004 640503928 781125005 800629910 861931040 1249800008 1281007856 1562250010 1601259820 1723862080 2321826739 2499600016 2562015712 3124500020 3202519640 4643653478 4999200032 5124031424 6249000040 6405039280 9287306956 9998400064 11609133695 12498000080 12810078560 18574613912 23218267390 24996000160 25620157120 37149227824 46436534780 49992000320 67332975431 74298455648 92873069560 134665950862 148596911296 185746139120 269331901724 336664877155 371492278240 538663803448 673329754310 742984556480 1077327606896 1346659508620 2154655213792 2693319017240 4309310427584 5386638034480 10773276068960 21546552137920
• Sum of all divisors σ(n): 53261543919168
• Sum of proper divisors (its aliquot sum) s(n): 31714991781248
• 21546552137920 is an abundant number, because the sum of its proper divisors (31714991781248) is greater than itself. Its abundance is 10168439643328

Bases of 21546552137920

• Binary: 100111001100010110010100101100001100011000000₂
• Hexadecimal: 0x1398B29618C0
• Base-36: 7MYCKTSCG

Squares and roots of 21546552137920

• 21546552137920 squared (21546552137920²) is 464253909032104922701926400
• 21546552137920 cubed (21546552137920³) is 10003071056193417520160948616822489088000
• The square root of 21546552137920 is 4641826.3795536343
• The cube root of 21546552137920 is 27826.5433809755

Scales and comparisons

• 21,546,552,137,920 seconds is equal to 685,113 years, 36 weeks, 6 days, 11 hours, 38 minutes, 40 seconds.
• To count from 1 to 21,546,552,137,920 would take you about one million, seven hundred twelve thousand, seven hundred eighty-four 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 21546552137920 cubic inches would be around 2318.9 feet tall.

Recreational maths with 21546552137920

• 21546552137920 backwards is 02973125564512
• The number of decimal digits it has is: 14
• The sum of 21546552137920's digits is 52
• More coming soon!