820990928
820,990,928 is an even composite number composed of five prime numbers multiplied together.
820990928 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 820990928:
24 × 17 × 292 × 37 × 97
(2 × 2 × 2 × 2 × 17 × 29 × 29 × 37 × 97)See below for interesting mathematical facts about the number 820990928 from the Numbermatics database.
Names of 820990928
- Cardinal: 820990928 can be written as Eight hundred twenty million, nine hundred ninety thousand, nine hundred twenty-eight.
Scientific notation
- Scientific notation: 8.20990928 × 108
Factors of 820990928
Divisors of 820990928
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 4 8 16 17 29 34 37 58 68 74 97 116 136 148 194 232 272 296 388 464 493 592 629 776 841 986 1073 1258 1552 1649 1682 1972 2146 2516 2813 3298 3364 3589 3944 4292 5032 5626 6596 6728 7178 7888 8584 10064 11252 13192 13456 14297 14356 17168 18241 22504 26384 28594 28712 31117 36482 45008 47821 57188 57424 61013 62234 72964 81577 95642 104081 114376 122026 124468 145928 163154 191284 208162 228752 244052 248936 291856 326308 382568 416324 488104 497872 528989 652616 765136 832648 976208 1057978 1305232 1386809 1665296 1769377 2115956 2773618 3018349 3538754 4231912 5547236 6036698 7077508 8463824 11094472 12073396 14155016 22188944 24146792 28310032 48293584 51311933 102623866 205247732 410495464 820990928
- Sum of all divisors σ(n): 1809931032
- Sum of proper divisors (its aliquot sum) s(n): 988940104
- 820990928 is an abundant number, because the sum of its proper divisors (988940104) is greater than itself. Its abundance is 167949176
Bases of 820990928
- Binary: 1100001110111101010011110100002
- Hexadecimal: 0x30EF53D0
- Base-36: DKSONK
Squares and roots of 820990928
- 820990928 squared (8209909282) is 674026103858301184
- 820990928 cubed (8209909283) is 553369316502851069555658752
-
The
square root of 820990928 is 28652.9392558599 -
The
cube root of 820990928 is 936.3670425981
Scales and comparisons
How big is 820990928?- 820,990,928 seconds is equal to 26 years, 5 weeks, 3 days, 5 hours, 2 minutes, 8 seconds.
-
To count from 1 to 820,990,928 would take you about thirty-nine 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 820990928 cubic inches would be around 78 feet tall.
Recreational maths with 820990928
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