21021920000

Names of 21021920000

• Cardinal: 21021920000 can be written as Twenty-one billion, twenty-one million, nine hundred twenty thousand.

Scientific notation

• Scientific notation: 2.102192 × 10¹⁰

Factors of 21021920000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 164

Divisors of 21021920000

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 37 40 50 53 64 67 74 80 100 106 125 128 134 148 160 185 200 212 250 256 265 268 296 320 335 370 400 424 500 530 536 592 625 640 670 740 800 848 925 1000 1060 1072 1184 1250 1280 1325 1340 1480 1600 1675 1696 1850 1961 2000 2120 2144 2368 2479 2500 2650 2680 2960 3200 3350 3392 3551 3700 3922 4000 4240 4288 4625 4736 4958 5000 5300 5360 5920 6400 6625 6700 6784 7102 7400 7844 8000 8375 8480 8576 9250 9472 9805 9916 10000 10600 10720 11840 12395 13250 13400 13568 14204 14800 15688 16000 16750 16960 17152 17755 18500 19610 19832 20000 21200 21440 23125 23680 24790 26500 26800 28408 29600 31376 32000 33125 33500 33920 35510 37000 39220 39664 40000 41875 42400 42880 46250 47360 49025 49580 53000 53600 56816 59200 61975 62752 66250 67000 67840 71020 74000 78440 79328 80000 83750 84800 85760 88775 92500 98050 99160 106000 107200 113632 118400 123950 125504 131387 132500 134000 142040 148000 156880 158656 160000 167500 169600 177550 185000 196100 198320 212000 214400 227264 236800 245125 247900 251008 262774 265000 268000 284080 296000 309875 313760 317312 335000 339200 355100 370000 392200 396640 424000 428800 443875 454528 490250 495800 502016 525548 530000 536000 568160 592000 619750 627520 634624 656935 670000 710200 740000 784400 793280 848000 887750 909056 980500 991600 1051096 1060000 1072000 1136320 1184000 1225625 1239500 1255040 1313870 1340000 1420400 1480000 1549375 1568800 1586560 1696000 1775500 1961000 1983200 2102192 2120000 2144000 2219375 2272640 2451250 2479000 2510080 2627740 2680000 2840800 2960000 3098750 3137600 3173120 3284675 3551000 3922000 3966400 4204384 4240000 4438750 4545280 4902500 4958000 5255480 5360000 5681600 5920000 6197500 6275200 6569350 7102000 7844000 7932800 8408768 8480000 8877500 9805000 9916000 10510960 10720000 11363200 12395000 12550400 13138700 14204000 15688000 15865600 16423375 16817536 17755000 19610000 19832000 21021920 22726400 24790000 26277400 28408000 31376000 32846750 33635072 35510000 39220000 39664000 42043840 49580000 52554800 56816000 62752000 65693500 71020000 78440000 79328000 82116875 84087680 99160000 105109600 113632000 131387000 142040000 156880000 164233750 168175360 198320000 210219200 262774000 284080000 313760000 328467500 396640000 420438400 525548000 568160000 656935000 840876800 1051096000 1313870000 2102192000 2627740000 4204384000 5255480000 10510960000 21021920000
• Sum of all divisors σ(n): 55687561776
• Sum of proper divisors (its aliquot sum) s(n): 34665641776
• 21021920000 is an abundant number, because the sum of its proper divisors (34665641776) is greater than itself. Its abundance is 13643721776

Bases of 21021920000

• Binary: 10011100101000000010000101100000000₂
• Hexadecimal: 0x4E5010B00
• Base-36: 9NNWPA8

Squares and roots of 21021920000

• 21021920000 squared (21021920000²) is 441921120486400000000
• 21021920000 cubed (21021920000³) is 9290030441175461888000000000000
• The square root of 21021920000 is 144989.3789213541
• The cube root of 21021920000 is 2759.8837730235

Scales and comparisons

• 21,021,920,000 seconds is equal to 668 years, 22 weeks, 3 days, 6 hours, 13 minutes, 20 seconds.
• To count from 1 to 21,021,920,000 would take you about one thousand, three hundred thirty-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 21021920000 cubic inches would be around 230 feet tall.

Recreational maths with 21021920000

• 21021920000 backwards is 00002912012
• The number of decimal digits it has is: 11
• The sum of 21021920000's digits is 17
• More coming soon!