20946420
20,946,420 is an even composite number composed of six prime numbers multiplied together.
20946420 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 20946420:
22 × 32 × 5 × 11 × 71 × 149
(2 × 2 × 3 × 3 × 5 × 11 × 71 × 149)See below for interesting mathematical facts about the number 20946420 from the Numbermatics database.
Names of 20946420
- Cardinal: 20946420 can be written as Twenty million, nine hundred forty-six thousand, four hundred twenty.
Scientific notation
- Scientific notation: 2.094642 × 107
Factors of 20946420
Divisors of 20946420
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 71 90 99 110 132 142 149 165 180 198 213 220 284 298 330 355 396 426 447 495 596 639 660 710 745 781 852 894 990 1065 1278 1341 1420 1490 1562 1639 1788 1980 2130 2235 2343 2556 2682 2980 3124 3195 3278 3905 4260 4470 4686 4917 5364 6390 6556 6705 7029 7810 8195 8940 9372 9834 10579 11715 12780 13410 14058 14751 15620 16390 19668 21158 23430 24585 26820 28116 29502 31737 32780 35145 42316 46860 49170 52895 59004 63474 70290 73755 95211 98340 105790 116369 126948 140580 147510 158685 190422 211580 232738 295020 317370 349107 380844 465476 476055 581845 634740 698214 952110 1047321 1163690 1396428 1745535 1904220 2094642 2327380 3491070 4189284 5236605 6982140 10473210 20946420
- Sum of all divisors σ(n): 70761600
- Sum of proper divisors (its aliquot sum) s(n): 49815180
- 20946420 is an abundant number, because the sum of its proper divisors (49815180) is greater than itself. Its abundance is 28868760
Bases of 20946420
- Binary: 10011111110011101111101002
- Hexadecimal: 0x13F9DF4
- Base-36: CGYD0
Squares and roots of 20946420
- 20946420 squared (209464202) is 438752510816400
- 20946420 cubed (209464203) is 9190294367614857288000
-
The
square root of 20946420 is 4576.7259039623 -
The
cube root of 20946420 is 275.6575778669
Scales and comparisons
How big is 20946420?- 20,946,420 seconds is equal to 34 weeks, 4 days, 10 hours, 27 minutes.
-
To count from 1 to 20,946,420 would take you about fifty-one weeks!
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 20946420 cubic inches would be around 23 feet tall.
Recreational maths with 20946420
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