121200997905
121,200,997,905 is an odd composite number composed of seven prime numbers multiplied together.
121200997905 is an odd 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 121200997905:
32 × 5 × 13 × 17 × 61 × 241 × 829
(3 × 3 × 5 × 13 × 17 × 61 × 241 × 829)See below for interesting mathematical facts about the number 121200997905 from the Numbermatics database.
Names of 121200997905
- Cardinal: 121200997905 can be written as One hundred twenty-one billion, two hundred million, nine hundred ninety-seven thousand, nine hundred five.
Scientific notation
- Scientific notation: 1.21200997905 × 1011
Factors of 121200997905
Divisors of 121200997905
- Number of divisors d(n): 192
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Complete list of divisors:
1 3 5 9 13 15 17 39 45 51 61 65 85 117 153 183 195 221 241 255 305 549 585 663 723 765 793 829 915 1037 1105 1205 1989 2169 2379 2487 2745 3111 3133 3315 3615 3965 4097 4145 5185 7137 7461 9333 9399 9945 10777 10845 11895 12291 12435 13481 14093 14701 15555 15665 20485 28197 32331 35685 36873 37305 40443 42279 44103 46665 46995 50569 53261 53885 61455 67405 70465 73505 96993 121329 126837 132309 140985 151707 159783 161655 183209 184365 191113 199789 202215 211395 220515 249917 252845 266305 455121 479349 484965 549627 573339 599367 606645 634185 657397 661545 749751 758535 798915 859673 916045 955565 998945 1249585 1648881 1720017 1798101 1972191 2249253 2275605 2396745 2579019 2597257 2748135 2866695 2996835 3248921 3286985 3396413 3748755 4298365 5916573 7737057 7791771 8244405 8600085 8990505 9746763 9860955 10189239 11175749 11246265 12187129 12895095 12986285 16244605 16982065 23375313 29240289 29582865 30567717 33527247 36561387 38685285 38958855 44153369 48733815 50946195 55878745 60935645 100581741 109684161 116876565 132460107 146201445 152838585 158432677 167636235 182806935 207181193 220766845 397380321 475298031 502908705 548420805 621543579 662300535 792163385 1035905965 1425894093 1864630737 1986901605 2376490155 2693355509 3107717895 7129470465 8080066527 9323153685 13466777545 24240199581 40400332635 121200997905
- Sum of all divisors σ(n): 244782457920
- Sum of proper divisors (its aliquot sum) s(n): 123581460015
- 121200997905 is an abundant number, because the sum of its proper divisors (123581460015) is greater than itself. Its abundance is 2380462110
Bases of 121200997905
- Binary: 11100001110000010010001110110000100012
- Hexadecimal: 0x1C38247611
- Base-36: 1JOFY0I9
Squares and roots of 121200997905
- 121200997905 squared (1212009979052) is 14689681893167814389025
- 121200997905 cubed (1212009979053) is 1780404104358948705577647879992625
-
The
square root of 121200997905 is 348139.3369112431 -
The
cube root of 121200997905 is 4948.8246422725
Scales and comparisons
How big is 121200997905?- 121,200,997,905 seconds is equal to 3,853 years, 42 weeks, 3 days, 7 hours, 51 minutes, 45 seconds.
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To count from 1 to 121,200,997,905 would take you about seven thousand, seven hundred seven 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 121200997905 cubic inches would be around 412.4 feet tall.
Recreational maths with 121200997905
- 121200997905 backwards is 509799002121
- 121200997905 is a
Harshad number . - The number of decimal digits it has is: 12
- The sum of 121200997905's digits is 45
- More coming soon!
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