121396728
121,396,728 is an even composite number composed of five prime numbers multiplied together.
121396728 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 121396728:
23 × 3 × 17 × 233 × 1277
(2 × 2 × 2 × 3 × 17 × 233 × 1277)See below for interesting mathematical facts about the number 121396728 from the Numbermatics database.
Names of 121396728
- Cardinal: 121396728 can be written as One hundred twenty-one million, three hundred ninety-six thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.21396728 × 108
Factors of 121396728
Divisors of 121396728
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 233 408 466 699 932 1277 1398 1864 2554 2796 3831 3961 5108 5592 7662 7922 10216 11883 15324 15844 21709 23766 30648 31688 43418 47532 65127 86836 95064 130254 173672 260508 297541 521016 595082 892623 1190164 1785246 2380328 3570492 5058197 7140984 10116394 15174591 20232788 30349182 40465576 60698364 121396728
- Sum of all divisors σ(n): 322976160
- Sum of proper divisors (its aliquot sum) s(n): 201579432
- 121396728 is an abundant number, because the sum of its proper divisors (201579432) is greater than itself. Its abundance is 80182704
Bases of 121396728
- Binary: 1110011110001011101111110002
- Hexadecimal: 0x73C5DF8
- Base-36: 209YBC
Squares and roots of 121396728
- 121396728 squared (1213967282) is 14737165569105984
- 121396728 cubed (1213967283) is 1789043680083724342820352
-
The
square root of 121396728 is 11018.0183336207 -
The
cube root of 121396728 is 495.1487197253
Scales and comparisons
How big is 121396728?- 121,396,728 seconds is equal to 3 years, 44 weeks, 5 days, 1 hour, 18 minutes, 48 seconds.
-
To count from 1 to 121,396,728 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 121396728 cubic inches would be around 41.3 feet tall.
Recreational maths with 121396728
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The information we have on file for 121396728 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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