21385524328

Names of 21385524328

• Cardinal: 21385524328 can be written as Twenty-one billion, three hundred eighty-five million, five hundred twenty-four thousand, three hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1385524328 × 10¹⁰

Factors of 21385524328

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1229

Divisors of 21385524328

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 7 8 14 19 28 37 38 49 56 71 74 76 98 133 142 148 152 196 259 266 284 296 392 497 518 532 568 703 931 994 1036 1064 1093 1349 1406 1813 1862 1988 2072 2186 2627 2698 2812 3479 3626 3724 3976 4372 4921 5254 5396 5624 6958 7252 7448 7651 8744 9443 9842 10508 10792 13916 14504 15302 18389 18886 19684 20767 21016 27832 30604 34447 36778 37772 39368 40441 41534 49913 53557 61208 66101 68894 73556 75544 77603 80882 83068 99826 107114 128723 132202 137788 145369 147112 155206 161764 166136 199652 214228 257446 264404 275576 283087 290738 310412 323528 349391 399304 428456 514892 528808 543221 566174 581476 620824 698782 768379 1017583 1029784 1086442 1132348 1162952 1397564 1474457 1536758 1981609 2035166 2172884 2264696 2445737 2795128 2871311 2948914 3073516 3802547 3963218 4070332 4345768 4891474 5378653 5742622 5897828 6147032 7605094 7926436 8140664 9782948 10321199 10757306 11485244 11795656 15210188 15852872 19565896 20099177 20642398 21514612 22970488 30420376 37650571 40198354 41284796 43029224 54554909 72248393 75301142 80396708 82569592 109109818 140694239 144496786 150602284 160793416 218219636 281388478 288993572 301204568 381884363 436439272 562776956 577987144 763768726 1125553912 1527537452 2673190541 3055074904 5346381082 10692762164 21385524328
• Sum of all divisors σ(n): 51183446400
• Sum of proper divisors (its aliquot sum) s(n): 29797922072
• 21385524328 is an abundant number, because the sum of its proper divisors (29797922072) is greater than itself. Its abundance is 8412397744

Bases of 21385524328

• Binary: 10011111010101011010011010001101000₂
• Hexadecimal: 0x4FAAD3468
• Base-36: 9TOE06G

Squares and roots of 21385524328

• 21385524328 squared (21385524328²) is 457340650783479851584
• 21385524328 cubed (21385524328³) is 9780469613513460626547461335552
• The square root of 21385524328 is 146237.9031851865
• The cube root of 21385524328 is 2775.7049564343

Scales and comparisons

• 21,385,524,328 seconds is equal to 679 years, 51 weeks, 4 days, 15 hours, 25 minutes, 28 seconds.
• To count from 1 to 21,385,524,328 would take you about one thousand, three hundred fifty-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 21385524328 cubic inches would be around 231.3 feet tall.

Recreational maths with 21385524328

• 21385524328 backwards is 82342558312
• The number of decimal digits it has is: 11
• The sum of 21385524328's digits is 43
• More coming soon!