21035721088

Names of 21035721088

• Cardinal: 21035721088 can be written as Twenty-one billion, thirty-five million, seven hundred twenty-one thousand and eighty-eight.

Scientific notation

• Scientific notation: 2.1035721088 × 10¹⁰

Factors of 21035721088

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 214

Divisors of 21035721088

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 8 16 31 32 41 43 62 64 82 86 97 124 128 164 172 194 248 328 344 388 496 656 688 776 961 992 1271 1312 1333 1376 1552 1763 1922 1984 2542 2624 2666 2752 3007 3104 3526 3844 3968 3977 4171 5084 5248 5332 5504 6014 6208 7052 7688 7954 8342 10168 10664 12028 12416 14104 15376 15908 16684 20336 21328 24056 28208 30752 31816 33368 39401 40672 41323 42656 48112 54653 56416 61504 63632 66736 78802 81344 82646 85312 93217 96224 109306 112832 123008 123287 127264 129301 133472 157604 162688 165292 170624 171011 186434 192448 218612 225664 246574 254528 258602 266944 315208 330584 342022 372868 384896 437224 493148 509056 517204 533888 630416 661168 684044 745736 874448 986296 1034408 1260832 1322336 1368088 1491472 1694243 1748896 1972592 2068816 2521664 2644672 2736176 2982944 3388486 3497792 3821897 3945184 4008331 4137632 5043328 5289344 5301341 5472352 5965888 6776972 6995584 7643794 7890368 8016662 8275264 10602682 10944704 11931776 13553944 15287588 15780736 16033324 16550528 21205364 21889408 27107888 30575176 32066648 42410728 54215776 61150352 64133296 84821456 108431552 122300704 128266592 164341571 169642912 216863104 244601408 256533184 328683142 339285824 489202816 513066368 657366284 678571648 1314732568 2629465136 5258930272 10517860544 21035721088
• Sum of all divisors σ(n): 45858249360
• Sum of proper divisors (its aliquot sum) s(n): 24822528272
• 21035721088 is an abundant number, because the sum of its proper divisors (24822528272) is greater than itself. Its abundance is 3786807184

Bases of 21035721088

• Binary: 10011100101110100111010000110000000₂
• Hexadecimal: 0x4E5D3A180
• Base-36: 9NW4I9S

Squares and roots of 21035721088

• 21035721088 squared (21035721088²) is 442501561692127903744
• 21035721088 cubed (21035721088³) is 9308339432760027908380894953472
• The square root of 21035721088 is 145036.9645573155
• The cube root of 21035721088 is 2760.4876041119

Scales and comparisons

• 21,035,721,088 seconds is equal to 668 years, 45 weeks, 1 day, 23 hours, 51 minutes, 28 seconds.
• To count from 1 to 21,035,721,088 would take you about one thousand, three hundred thirty-seven 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 21035721088 cubic inches would be around 230 feet tall.

Recreational maths with 21035721088

• 21035721088 backwards is 88012753012
• The number of decimal digits it has is: 11
• The sum of 21035721088's digits is 37
• More coming soon!