21217209100
21,217,209,100 is an even composite number composed of seven prime numbers multiplied together.
21217209100 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21217209100:
22 × 52 × 29 × 31 × 53 × 61 × 73
(2 × 2 × 5 × 5 × 29 × 31 × 53 × 61 × 73)See below for interesting mathematical facts about the number 21217209100 from the Numbermatics database.
Names of 21217209100
- Cardinal: 21217209100 can be written as Twenty-one billion, two hundred seventeen million, two hundred nine thousand, one hundred.
Scientific notation
- Scientific notation: 2.12172091 × 1010
Factors of 21217209100
Divisors of 21217209100
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 5 10 20 25 29 31 50 53 58 61 62 73 100 106 116 122 124 145 146 155 212 244 265 290 292 305 310 365 530 580 610 620 725 730 775 899 1060 1220 1325 1450 1460 1525 1537 1550 1643 1769 1798 1825 1891 2117 2263 2650 2900 3050 3074 3100 3233 3286 3538 3596 3650 3782 3869 4234 4453 4495 4526 5300 6100 6148 6466 6572 7076 7300 7564 7685 7738 8215 8468 8845 8906 8990 9052 9455 10585 11315 12932 15370 15476 16165 16430 17690 17812 17980 18910 19345 21170 22265 22475 22630 30740 32330 32860 35380 37820 38425 38690 41075 42340 44225 44530 44950 45260 47275 47647 52925 54839 56575 64660 65627 76850 77380 80825 82150 88450 89060 89900 93757 94550 95294 96725 100223 105850 109678 111325 112201 113150 119939 129137 131254 138043 153700 161650 164300 176900 187514 189100 190588 193450 200446 211700 219356 222650 224402 226300 236009 238235 239878 258274 262508 274195 276086 323300 328135 375028 386900 400892 445300 448804 468785 472018 476470 479756 501115 516548 548390 552172 561005 599695 645685 656270 690215 937570 944036 952940 1002230 1096780 1122010 1180045 1191175 1199390 1291370 1312540 1370975 1380430 1640675 1875140 2004460 2244020 2343925 2360090 2382350 2398780 2505575 2582740 2741950 2760860 2805025 2906467 2998475 3228425 3281350 3451075 3478231 4003247 4687850 4720180 4764700 5011150 5483900 5610050 5812934 5900225 5996950 6456850 6562700 6844261 6902150 6956462 7316279 8006494 9375700 10022300 11220100 11625868 11800450 11993900 12913700 13688522 13804300 13912924 14532335 14632558 16012988 17391155 20016235 23600900 27377044 29064670 29265116 34221305 34782310 36581395 40032470 58129340 68442610 69564620 72661675 73162790 80064940 86955775 100081175 136885220 145323350 146325580 171106525 173911550 182906975 200162350 212172091 290646700 342213050 347823100 365813950 400324700 424344182 684426100 731627900 848688364 1060860455 2121720910 4243441820 5304302275 10608604550 21217209100
- Sum of all divisors σ(n): 51611696640
- Sum of proper divisors (its aliquot sum) s(n): 30394487540
- 21217209100 is an abundant number, because the sum of its proper divisors (30394487540) is greater than itself. Its abundance is 9177278440
Bases of 21217209100
- Binary: 100111100001010010011101011000011002
- Hexadecimal: 0x4F0A4EB0C
- Base-36: 9QW6FBG
Squares and roots of 21217209100
- 21217209100 squared (212172091002) is 450169961993122810000
- 21217209100 cubed (212172091003) is 9551350214147139421749571000000
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The
square root of 21217209100 is 145661.2820896479 -
The
cube root of 21217209100 is 2768.4036860627
Scales and comparisons
How big is 21217209100?- 21,217,209,100 seconds is equal to 674 years, 33 weeks, 2 days, 13 hours, 11 minutes, 40 seconds.
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To count from 1 to 21,217,209,100 would take you about one thousand, three hundred forty-nine 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 21217209100 cubic inches would be around 230.7 feet tall.
Recreational maths with 21217209100
- 21217209100 backwards is 00190271212
- 21217209100 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21217209100's digits is 25
- More coming soon!
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