21299139200

Names of 21299139200

• Cardinal: 21299139200 can be written as Twenty-one billion, two hundred ninety-nine million, one hundred thirty-nine thousand, two hundred.

Scientific notation

• Scientific notation: 2.12991392 × 10¹⁰

Factors of 21299139200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2538

Divisors of 21299139200

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 41 50 64 67 80 82 100 128 134 160 164 200 205 268 320 328 335 400 410 536 640 656 670 800 820 1025 1072 1312 1340 1600 1640 1675 2050 2144 2423 2624 2680 2747 3200 3280 3350 4100 4288 4846 5248 5360 5494 6560 6700 8200 8576 9692 10720 10988 12115 13120 13400 13735 16400 19384 21440 21976 24230 26240 26800 27470 32800 38768 42880 43952 48460 53600 54940 60575 65600 68675 77536 87904 96920 99343 107200 109880 121150 131200 137350 155072 162341 175808 193840 198686 214400 219760 242300 274700 310144 324682 351616 387680 397372 439520 484600 496715 549400 649364 775360 794744 811705 879040 969200 993430 1098800 1298728 1550720 1589488 1623410 1758080 1938400 1986860 2197600 2483575 2597456 3178976 3246820 3876800 3973720 4058525 4395200 4967150 5194912 6357952 6493640 6655981 7753600 7947440 8117050 8790400 9934300 10389824 12715904 12987280 13311962 15894880 16234100 19868600 20779648 25974560 26623924 31789760 32468200 33279905 39737200 51949120 53247848 63579520 64936400 66559810 79474400 103898240 106495696 129872800 133119620 158948800 166399525 212991392 259745600 266239240 317897600 332799050 425982784 519491200 532478480 665598100 851965568 1064956960 1331196200 2129913920 2662392400 4259827840 5324784800 10649569600 21299139200
• Sum of all divisors σ(n): 54725872320
• Sum of proper divisors (its aliquot sum) s(n): 33426733120
• 21299139200 is an abundant number, because the sum of its proper divisors (33426733120) is greater than itself. Its abundance is 12127593920

Bases of 21299139200

• Binary: 10011110101100001110001001010000000₂
• Hexadecimal: 0x4F5871280
• Base-36: 9S8YGZK

Squares and roots of 21299139200

• 21299139200 squared (21299139200²) is 453653330660976640000
• 21299139200 cubed (21299139200³) is 9662425438291769463308288000000
• The square root of 21299139200 is 145942.2461112615
• The cube root of 21299139200 is 2771.9624995015

Scales and comparisons

• 21,299,139,200 seconds is equal to 677 years, 12 weeks, 5 days, 19 hours, 33 minutes, 20 seconds.
• To count from 1 to 21,299,139,200 would take you about one thousand, three hundred fifty-four 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 21299139200 cubic inches would be around 231 feet tall.

Recreational maths with 21299139200

• 21299139200 backwards is 00293199212
• The number of decimal digits it has is: 11
• The sum of 21299139200's digits is 38
• More coming soon!