121420890
121,420,890 is an even composite number composed of five prime numbers multiplied together.
121420890 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 121420890:
2 × 33 × 5 × 127 × 3541
(2 × 3 × 3 × 3 × 5 × 127 × 3541)See below for interesting mathematical facts about the number 121420890 from the Numbermatics database.
Names of 121420890
- Cardinal: 121420890 can be written as One hundred twenty-one million, four hundred twenty thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 1.2142089 × 108
Factors of 121420890
Divisors of 121420890
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 45 54 90 127 135 254 270 381 635 762 1143 1270 1905 2286 3429 3541 3810 5715 6858 7082 10623 11430 17145 17705 21246 31869 34290 35410 53115 63738 95607 106230 159345 191214 318690 449707 478035 899414 956070 1349121 2248535 2698242 4047363 4497070 6745605 8094726 12142089 13491210 20236815 24284178 40473630 60710445 121420890
- Sum of all divisors σ(n): 326430720
- Sum of proper divisors (its aliquot sum) s(n): 205009830
- 121420890 is an abundant number, because the sum of its proper divisors (205009830) is greater than itself. Its abundance is 83588940
Bases of 121420890
- Binary: 1110011110010111100010110102
- Hexadecimal: 0x73CBC5A
- Base-36: 20AGYI
Squares and roots of 121420890
- 121420890 squared (1214208902) is 14743032528392100
- 121420890 cubed (1214208903) is 1790112130896319050969000
-
The
square root of 121420890 is 11019.1147557325 -
The
cube root of 121420890 is 495.1815679191
Scales and comparisons
How big is 121420890?- 121,420,890 seconds is equal to 3 years, 44 weeks, 5 days, 8 hours, 1 minute, 30 seconds.
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To count from 1 to 121,420,890 would take you about 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 121420890 cubic inches would be around 41.3 feet tall.
Recreational maths with 121420890
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