42990720
42,990,720 is an even composite number composed of four prime numbers multiplied together.
42990720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 42990720:
27 × 3 × 5 × 22391
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 22391)See below for interesting mathematical facts about the number 42990720 from the Numbermatics database.
Names of 42990720
- Cardinal: 42990720 can be written as Forty-two million, nine hundred ninety thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 4.299072 × 107
Factors of 42990720
Divisors of 42990720
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 320 384 480 640 960 1920 22391 44782 67173 89564 111955 134346 179128 223910 268692 335865 358256 447820 537384 671730 716512 895640 1074768 1343460 1433024 1791280 2149536 2686920 2866048 3582560 4299072 5373840 7165120 8598144 10747680 14330240 21495360 42990720
- Sum of all divisors σ(n): 137039040
- Sum of proper divisors (its aliquot sum) s(n): 94048320
- 42990720 is an abundant number, because the sum of its proper divisors (94048320) is greater than itself. Its abundance is 51057600
Bases of 42990720
- Binary: 101000111111111100100000002
- Hexadecimal: 0x28FFC80
- Base-36: PLFUO
Squares and roots of 42990720
- 42990720 squared (429907202) is 1848202006118400
- 42990720 cubed (429907203) is 79455534948474421248000
-
The
square root of 42990720 is 6556.7308927545 -
The
cube root of 42990720 is 350.3146014859
Scales and comparisons
How big is 42990720?- 42,990,720 seconds is equal to 1 year, 19 weeks, 13 hours, 52 minutes.
-
To count from 1 to 42,990,720 would take you about two 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 42990720 cubic inches would be around 29.2 feet tall.
Recreational maths with 42990720
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