21168949536

Names of 21168949536

• Cardinal: 21168949536 can be written as Twenty-one billion, one hundred sixty-eight million, nine hundred forty-nine thousand, five hundred thirty-six.

Scientific notation

• Scientific notation: 2.1168949536 × 10¹⁰

Factors of 21168949536

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 686

Divisors of 21168949536

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 43 48 54 56 63 72 81 84 86 96 108 112 126 129 144 162 168 172 189 216 224 252 258 288 301 324 336 344 378 387 432 504 516 567 602 631 648 672 688 756 774 864 903 1008 1032 1134 1161 1204 1262 1296 1376 1512 1548 1806 1849 1893 2016 2064 2268 2322 2408 2524 2592 2709 3024 3096 3483 3612 3698 3786 4128 4417 4536 4644 4816 5048 5418 5547 5679 6048 6192 6966 7224 7396 7572 8127 8834 9072 9288 9632 10096 10836 11094 11358 12384 12943 13251 13932 14448 14792 15144 16254 16641 17037 17668 18144 18576 20192 21672 22188 22716 24381 25886 26502 27133 27864 28896 29584 30288 32508 33282 34074 35336 37152 38829 39753 43344 44376 45432 48762 49923 51111 51772 53004 54266 55728 59168 60576 65016 66564 68148 70672 77658 79506 81399 86688 88752 90864 97524 99846 102222 103544 106008 108532 111456 116487 119259 130032 133128 136296 141344 149769 155316 159012 162798 177504 181728 189931 195048 199692 204444 207088 212016 217064 232974 238518 244197 260064 266256 272592 299538 310632 318024 325596 349461 357777 379862 390096 399384 408888 414176 424032 434128 465948 477036 488394 532512 545184 569793 599076 621264 636048 651192 698922 715554 732591 759724 780192 798768 817776 868256 931896 954072 976788 1048383 1139586 1166719 1198152 1242528 1272096 1302384 1397844 1431108 1465182 1519448 1597536 1635552 1709379 1863792 1908144 1953576 2096766 2197773 2279172 2333438 2396304 2604768 2795688 2862216 2930364 3038896 3418758 3500157 3727584 3816288 3907152 4193532 4395546 4558344 4666876 4792608 5128137 5591376 5724432 5860728 6077792 6837516 7000314 7814304 8167033 8387064 8791092 9116688 9333752 10256274 10500471 11182752 11448864 11721456 13675032 14000628 15384411 16334066 16774128 17582184 18233376 18667504 20512548 21000942 23442912 24501099 27350064 28001256 30768822 31501413 32668132 33548256 35164368 37335008 41025096 42001884 49002198 54700128 56002512 61537644 63002826 65336264 70328736 73503297 82050192 84003768 94504239 98004396 112005024 123075288 126005652 130672528 147006594 164100384 168007536 189008478 196008792 220509891 246150576 252011304 261345056 294013188 336015072 378016956 392017584 441019782 492301152 504022608 588026376 661529673 756033912 784035168 882039564 1008045216 1176052752 1323059346 1512067824 1764079128 2352105504 2646118692 3024135648 3528158256 5292237384 7056316512 10584474768 21168949536
• Sum of all divisors σ(n): 72959793984
• Sum of proper divisors (its aliquot sum) s(n): 51790844448
• 21168949536 is an abundant number, because the sum of its proper divisors (51790844448) is greater than itself. Its abundance is 30621894912

Bases of 21168949536

• Binary: 10011101101110001001000100100100000₂
• Hexadecimal: 0x4EDC48920
• Base-36: 9Q3G200

Squares and roots of 21168949536

• 21168949536 squared (21168949536²) is 448124424457714615296
• 21168949536 cubed (21168949536³) is 9486323327194404857090677702656
• The square root of 21168949536 is 145495.5309829137
• The cube root of 21168949536 is 2766.3031368165

Scales and comparisons

• 21,168,949,536 seconds is equal to 673 years, 5 weeks, 3 days, 23 hours, 45 minutes, 36 seconds.
• To count from 1 to 21,168,949,536 would take you about one thousand, three hundred forty-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 21168949536 cubic inches would be around 230.5 feet tall.

Recreational maths with 21168949536

• 21168949536 backwards is 63594986112
• 21168949536 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21168949536's digits is 54
• More coming soon!