21679139376

Names of 21679139376

• Cardinal: 21679139376 can be written as Twenty-one billion, six hundred seventy-nine million, one hundred thirty-nine thousand, three hundred seventy-six.

Scientific notation

• Scientific notation: 2.1679139376 × 10¹⁰

Factors of 21679139376

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 121

Divisors of 21679139376

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 43 48 54 72 73 81 86 108 129 144 146 162 172 216 219 258 292 324 344 387 432 438 516 584 648 657 688 774 876 1032 1161 1168 1296 1314 1548 1752 1971 2064 2322 2628 3096 3139 3483 3504 3942 4644 5256 5329 5913 6192 6278 6966 7884 9288 9417 10512 10658 11826 12556 13932 15768 15987 18576 18834 21316 23652 25112 27864 28251 31536 31974 37668 42632 47304 47961 50224 55728 56502 63948 75336 84753 85264 94608 95922 113004 127896 143883 150672 169506 191844 226008 229147 254259 255792 287766 339012 383688 389017 431649 452016 458294 508518 575532 678024 687441 767376 778034 863298 916588 1017036 1151064 1167051 1356048 1374882 1556068 1726596 1833176 2034072 2062323 2302128 2334102 2749764 3112136 3453192 3501153 3666352 4068144 4124646 4668204 5499528 6186969 6224272 6906384 7002306 8249292 9336408 10503459 10999056 12373938 14004612 16498584 16727731 18560907 18672816 21006918 24747876 28009224 31510377 32997168 33455462 37121814 42013836 49495752 50183193 56018448 63020754 66910924 74243628 84027672 98991504 100366386 126041508 133821848 148487256 150549579 168055344 200732772 252083016 267643696 296974512 301099158 401465544 451648737 504166032 602198316 802931088 903297474 1204396632 1354946211 1806594948 2408793264 2709892422 3613189896 5419784844 7226379792 10839569688 21679139376
• Sum of all divisors σ(n): 65096654480
• Sum of proper divisors (its aliquot sum) s(n): 43417515104
• 21679139376 is an abundant number, because the sum of its proper divisors (43417515104) is greater than itself. Its abundance is 21738375728

Bases of 21679139376

• Binary: 10100001100001011010110101000110000₂
• Hexadecimal: 0x50C2D6A30
• Base-36: 9YJ7700

Squares and roots of 21679139376

• 21679139376 squared (21679139376²) is 469985084084033669376
• 21679139376 cubed (21679139376³) is 10188872142498845214679006949376
• The square root of 21679139376 is 147238.3760301641
• The cube root of 21679139376 is 2788.3503810625

Scales and comparisons

• 21,679,139,376 seconds is equal to 689 years, 17 weeks, 23 hours, 9 minutes, 36 seconds.
• To count from 1 to 21,679,139,376 would take you about one thousand, three hundred seventy-eight 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 21679139376 cubic inches would be around 232.4 feet tall.

Recreational maths with 21679139376

• 21679139376 backwards is 67393197612
• 21679139376 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21679139376's digits is 54
• More coming soon!