997981528890
997,981,528,890 is an even composite number composed of seven prime numbers multiplied together.
997981528890 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 997981528890:
2 × 3 × 5 × 97 × 149 × 281 × 8191
See below for interesting mathematical facts about the number 997981528890 from the Numbermatics database.
Names of 997981528890
- Cardinal: 997981528890 can be written as Nine hundred ninety-seven billion, nine hundred eighty-one million, five hundred twenty-eight thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 9.9798152889 × 1011
Factors of 997981528890
Divisors of 997981528890
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 10 15 30 97 149 194 281 291 298 447 485 562 582 745 843 894 970 1405 1455 1490 1686 2235 2810 2910 4215 4470 8191 8430 14453 16382 24573 27257 28906 40955 41869 43359 49146 54514 72265 81771 81910 83738 86718 122865 125607 136285 144530 163542 209345 216795 245730 251214 272570 408855 418690 433590 628035 794527 817710 1220459 1256070 1589054 2301671 2383581 2440918 3661377 3972635 4061293 4603342 4767162 6102295 6905013 7322754 7945270 8122586 11508355 11917905 12183879 12204590 13810026 18306885 20306465 23016710 23835810 24367758 34525065 36613770 40612930 60919395 69050130 118384523 121838790 223262087 236769046 342948979 355153569 446524174 591922615 669786261 685897958 710307138 1028846937 1116310435 1183845230 1339572522 1714744895 1775767845 2057693874 2232620870 3348931305 3429489790 3551535690 5144234685 6697862610 10288469370 33266050963 66532101926 99798152889 166330254815 199596305778 332660509630 498990764445 997981528890
- Sum of all divisors σ(n): 2445056409600
- Sum of proper divisors (its aliquot sum) s(n): 1447074880710
- 997981528890 is an abundant number, because the sum of its proper divisors (1447074880710) is greater than itself. Its abundance is 449093351820
Bases of 997981528890
- Binary: 11101000010111000101010110100011001110102
- Hexadecimal: 0xE85C55A33A
- Base-36: CQGSFNZU
Squares and roots of 997981528890
- 997981528890 squared (9979815288902) is 995967132005621904632100
- 997981528890 cubed (9979815288903) is 993956801123159000460016930971369000
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The
square root of 997981528890 is 998990.2546521663 -
The
cube root of 997981528890 is 9993.2672309661
Scales and comparisons
How big is 997981528890?- 997,981,528,890 seconds is equal to 31,732 years, 37 weeks, 5 days, 3 hours, 21 minutes, 30 seconds.
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To count from 1 to 997,981,528,890 would take you about sixty-three thousand, four hundred sixty-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 997981528890 cubic inches would be around 832.8 feet tall.
Recreational maths with 997981528890
- 997981528890 backwards is 098825189799
- The number of decimal digits it has is: 12
- The sum of 997981528890's digits is 75
- More coming soon!
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