121390742865
121,390,742,865 is an odd composite number composed of seven prime numbers multiplied together.
121390742865 is an odd 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 121390742865:
3 × 5 × 7 × 29 × 31 × 157 × 8191
See below for interesting mathematical facts about the number 121390742865 from the Numbermatics database.
Names of 121390742865
- Cardinal: 121390742865 can be written as One hundred twenty-one billion, three hundred ninety million, seven hundred forty-two thousand, eight hundred sixty-five.
Scientific notation
- Scientific notation: 1.21390742865 × 1011
Factors of 121390742865
Divisors of 121390742865
- Number of divisors d(n): 128
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Complete list of divisors:
1 3 5 7 15 21 29 31 35 87 93 105 145 155 157 203 217 435 465 471 609 651 785 899 1015 1085 1099 2355 2697 3045 3255 3297 4495 4553 4867 5495 6293 8191 13485 13659 14601 16485 18879 22765 24335 24573 31465 31871 34069 40955 57337 68295 73005 94395 95613 102207 122865 141143 159355 170345 172011 237539 253921 286685 423429 478065 511035 705715 712617 761763 860055 988001 1187695 1269605 1285987 1662773 1777447 2117145 2964003 3563085 3808815 3857961 4940005 4988319 5332341 6429935 7363709 8313865 8887235 9001909 14820015 19289805 22091127 24941595 26661705 27005727 36818545 37293623 39865597 45009545 51545963 110455635 111880869 119596791 135028635 154637889 186468115 199327985 257729815 261055361 279059179 559404345 597983955 773189445 783166083 837177537 1156102313 1305276805 1395295895 3468306939 3915830415 4185887685 5780511565 8092716191 17341534695 24278148573 40463580955 121390742865
- Sum of all divisors σ(n): 238572011520
- Sum of proper divisors (its aliquot sum) s(n): 117181268655
- 121390742865 is a deficient number, because the sum of its proper divisors (117181268655) is less than itself. Its deficiency is 4209474210
Bases of 121390742865
- Binary: 11100010000110111001110111101010100012
- Hexadecimal: 0x1C4373BD51
- Base-36: 1JRKWWNL
Squares and roots of 121390742865
- 121390742865 squared (1213907428652) is 14735712453316548408225
- 121390742865 cubed (1213907428653) is 1788779081353127444272166026064625
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The
square root of 121390742865 is 348411.7432937643 -
The
cube root of 121390742865 is 4951.4058227203
Scales and comparisons
How big is 121390742865?- 121,390,742,865 seconds is equal to 3,859 years, 44 weeks, 1 day, 10 hours, 47 minutes, 45 seconds.
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To count from 1 to 121,390,742,865 would take you about seven thousand, seven hundred nineteen 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 121390742865 cubic inches would be around 412.6 feet tall.
Recreational maths with 121390742865
- 121390742865 backwards is 568247093121
- The number of decimal digits it has is: 12
- The sum of 121390742865's digits is 48
- More coming soon!
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The information we have on file for 121390742865 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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