21321312740
21,321,312,740 is an even composite number composed of seven prime numbers multiplied together.
21321312740 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 21321312740:
22 × 5 × 7 × 13 × 137 × 233 × 367
(2 × 2 × 5 × 7 × 13 × 137 × 233 × 367)See below for interesting mathematical facts about the number 21321312740 from the Numbermatics database.
Names of 21321312740
- Cardinal: 21321312740 can be written as Twenty-one billion, three hundred twenty-one million, three hundred twelve thousand, seven hundred forty.
Scientific notation
- Scientific notation: 2.132131274 × 1010
Factors of 21321312740
Divisors of 21321312740
- Number of divisors d(n): 192
-
Complete list of divisors:
1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 137 140 182 233 260 274 364 367 455 466 548 685 734 910 932 959 1165 1370 1468 1631 1781 1820 1835 1918 2330 2569 2740 3029 3262 3562 3670 3836 4660 4771 4795 5138 6058 6524 7124 7340 8155 8905 9542 9590 10276 12116 12467 12845 15145 16310 17810 19084 19180 21203 23855 24934 25690 30290 31921 32620 33397 35620 42406 47710 49868 50279 51380 60580 62335 63842 66794 84812 85511 95420 100558 106015 124670 127684 133588 159605 166985 171022 201116 212030 223447 249340 251395 319210 333970 342044 351953 414973 424060 427555 446894 502790 598577 638420 653627 667940 703906 829946 855110 893788 1005580 1111643 1117235 1197154 1307254 1407812 1659892 1710220 1759765 2074865 2223286 2234470 2394308 2614508 2904811 2992885 3268135 3519530 4149730 4446572 4468940 4575389 5558215 5809622 5985770 6536270 7039060 7781501 8299460 9150778 11116430 11619244 11715007 11971540 13072540 14524055 15563002 18301556 22232860 22876945 23430014 29048110 31126004 38907505 45753890 46860028 58096220 58575035 77815010 82005049 91507780 117150070 152295091 155630020 164010098 234300140 304590182 328020196 410025245 609180364 761475455 820050490 1066065637 1522950910 1640100980 2132131274 3045901820 4264262548 5330328185 10660656370 21321312740
- Sum of all divisors σ(n): 55899777024
- Sum of proper divisors (its aliquot sum) s(n): 34578464284
- 21321312740 is an abundant number, because the sum of its proper divisors (34578464284) is greater than itself. Its abundance is 13257151544
Bases of 21321312740
- Binary: 100111101101101100101101001111001002
- Hexadecimal: 0x4F6D969E4
- Base-36: 9SM5Q78
Squares and roots of 21321312740
- 21321312740 squared (213213127402) is 454598376956886307600
- 21321312740 cubed (213213127403) is 9692634166194182460963438824000
-
The
square root of 21321312740 is 146018.1931815347 -
The
cube root of 21321312740 is 2772.9240861635
Scales and comparisons
How big is 21321312740?- 21,321,312,740 seconds is equal to 677 years, 49 weeks, 3 days, 10 hours, 52 minutes, 20 seconds.
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To count from 1 to 21,321,312,740 would take you about one thousand, three hundred fifty-five 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 21321312740 cubic inches would be around 231.1 feet tall.
Recreational maths with 21321312740
- 21321312740 backwards is 04721312312
- 21321312740 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21321312740's digits is 26
- More coming soon!
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"Number 21321312740 - Facts about the integer". Numbermatics.com. 2024. Web. 9 May 2024.
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