21205811200

Names of 21205811200

• Cardinal: 21205811200 can be written as Twenty-one billion, two hundred five million, eight hundred eleven thousand, two hundred.

Scientific notation

• Scientific notation: 2.12058112 × 10¹⁰

Factors of 21205811200

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 57

Divisors of 21205811200

• Number of divisors d(n): 306
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 43 50 56 64 70 80 86 100 112 128 140 160 172 175 200 215 224 256 280 301 320 344 350 400 430 448 512 560 602 640 688 700 800 860 896 1024 1075 1120 1204 1280 1376 1400 1505 1600 1720 1792 1849 2048 2150 2240 2408 2560 2752 2800 3010 3200 3440 3584 3698 4096 4300 4480 4816 5120 5504 5600 6020 6400 6880 7168 7396 7525 8192 8600 8960 9245 9632 10240 11008 11200 12040 12800 12943 13760 14336 14792 15050 16384 17200 17920 18490 19264 20480 22016 22400 24080 25600 25886 27520 28672 29584 30100 32768 34400 35840 36980 38528 40960 44032 44800 46225 48160 51200 51772 55040 57344 59168 60200 64715 65536 68800 71680 73960 77056 81920 88064 89600 92450 96320 102400 103544 110080 114688 118336 120400 129430 137600 143360 147920 154112 163840 176128 179200 184900 192640 204800 207088 220160 229376 236672 240800 258860 275200 286720 295840 308224 323575 327680 352256 358400 369800 385280 409600 414176 440320 458752 473344 481600 517720 550400 573440 591680 616448 647150 704512 716800 739600 770560 819200 828352 880640 946688 963200 1035440 1100800 1146880 1183360 1232896 1294300 1409024 1433600 1479200 1541120 1638400 1656704 1761280 1893376 1926400 2070880 2201600 2293760 2366720 2465792 2588600 2818048 2867200 2958400 3082240 3313408 3522560 3786752 3852800 4141760 4403200 4733440 4931584 5177200 5734400 5916800 6164480 6626816 7045120 7573504 7705600 8283520 8806400 9466880 9863168 10354400 11468800 11833600 12328960 13253632 14090240 15147008 15411200 16567040 17612800 18933760 19726336 20708800 23667200 24657920 26507264 30294016 30822400 33134080 35225600 37867520 41417600 47334400 49315840 53014528 60588032 61644800 66268160 70451200 75735040 82835200 94668800 98631680 106029056 121176064 123289600 132536320 151470080 165670400 189337600 212058112 246579200 265072640 302940160 331340800 378675200 424116224 493158400 530145280 605880320 662681600 757350400 848232448 1060290560 1325363200 1514700800 2120581120 2650726400 3029401600 4241162240 5301452800 10602905600 21205811200
• Sum of all divisors σ(n): 61533115944
• Sum of proper divisors (its aliquot sum) s(n): 40327304744
• 21205811200 is an abundant number, because the sum of its proper divisors (40327304744) is greater than itself. Its abundance is 19121493544

Bases of 21205811200

• Binary: 10011101111111101110000000000000000₂
• Hexadecimal: 0x4EFF70000
• Base-36: 9QPE4N4

Squares and roots of 21205811200

• 21205811200 squared (21205811200²) is 449686428650045440000
• 21205811200 cubed (21205811200³) is 9535965505155134472060928000000
• The square root of 21205811200 is 145622.1521609953
• The cube root of 21205811200 is 2767.9078677833

Scales and comparisons

• 21,205,811,200 seconds is equal to 674 years, 14 weeks, 3 days, 15 hours, 6 minutes, 40 seconds.
• To count from 1 to 21,205,811,200 would take you about one thousand, three hundred forty-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 21205811200 cubic inches would be around 230.7 feet tall.

Recreational maths with 21205811200

• 21205811200 backwards is 00211850212
• The number of decimal digits it has is: 11
• The sum of 21205811200's digits is 22
• More coming soon!