21168988615827

Names of 21168988615827

• Cardinal: 21168988615827 can be written as Twenty-one trillion, one hundred sixty-eight billion, nine hundred eighty-eight million, six hundred fifteen thousand, eight hundred twenty-seven.

Scientific notation

• Scientific notation: 2.1168988615827 × 10¹³

Factors of 21168988615827

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 166

Divisors of 21168988615827

• Number of divisors d(n): 168
• Complete list of divisors:
  1 3 9 13 27 39 71 79 81 117 213 237 243 351 639 711 729 923 1027 1053 1917 2133 2769 3081 3159 5041 5609 5751 6241 6399 8307 9243 9477 15123 16827 17253 18723 19197 24921 27729 45369 50481 51759 56169 57591 65533 72917 74763 81133 83187 136107 151443 168507 196599 218751 224289 243399 249561 357911 398239 408321 443111 454329 505521 589797 656253 672867 730197 748683 1073733 1194717 1224963 1329333 1362987 1516563 1769391 1968759 2190591 3221199 3584151 3674889 3987999 4088961 4549689 4652843 5177107 5308173 5760443 5906277 6571773 9663597 10752453 11963997 13958529 15531321 15924519 17281329 17718831 19715319 28274969 28990791 31460881 32257359 35891991 41875587 46593963 47773557 51843987 53156493 59145957 84824907 86972373 94382643 96772077 107675973 125626761 139781889 155531961 254474721 260917119 283147929 290316231 323027919 367574597 376880283 408991453 419345667 466595883 763424163 849443787 1102723791 1130640849 1226974359 1258037001 1399787649 2233722551 2290272489 2548331361 3308171373 3391922547 3680923077 3774111003 4199362947 6701167653 6870817467 7644994083 9924514119 11042769231 20103502959 20612452401 22934982249 29038393163 29773542357 33128307693 60310508877 87115179489 89320627071 99384923079 180931526631 261345538467 267961881213 298154769237 542794579893 784036615401 1628383739679 2352109846203 7056329538609 21168988615827
• Sum of all divisors σ(n): 35113112320608
• Sum of proper divisors (its aliquot sum) s(n): 13944123704781
• 21168988615827 is a deficient number, because the sum of its proper divisors (13944123704781) is less than itself. Its deficiency is 7224864911046

Bases of 21168988615827

• Binary: 100110100000011001010000010111111010010010011₂
• Hexadecimal: 0x1340CA0BF493
• Base-36: 7I4WD966R

Squares and roots of 21168988615827

• 21168988615827 squared (21168988615827²) is 448126079017013125394893929
• 21168988615827 cubed (21168988615827³) is 9486375865166341510137146816835195614283
• The square root of 21168988615827 is 4600976.9197233537
• The cube root of 21168988615827 is 27663.0483909875

Scales and comparisons

• 21,168,988,615,827 seconds is equal to 673,108 years, 18 weeks, 4 days, 7 hours, 30 minutes, 27 seconds.
• To count from 1 to 21,168,988,615,827 would take you about one million, six hundred eighty-two thousand, seven hundred seventy 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 21168988615827 cubic inches would be around 2305.3 feet tall.

Recreational maths with 21168988615827

• 21168988615827 backwards is 72851688986112
• The number of decimal digits it has is: 14
• The sum of 21168988615827's digits is 72
• More coming soon!