145369720
145,369,720 is an even composite number composed of five prime numbers multiplied together.
145369720 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 145369720:
23 × 5 × 17 × 313 × 683
(2 × 2 × 2 × 5 × 17 × 313 × 683)See below for interesting mathematical facts about the number 145369720 from the Numbermatics database.
Names of 145369720
- Cardinal: 145369720 can be written as One hundred forty-five million, three hundred sixty-nine thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.4536972 × 108
Factors of 145369720
Divisors of 145369720
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 4 5 8 10 17 20 34 40 68 85 136 170 313 340 626 680 683 1252 1366 1565 2504 2732 3130 3415 5321 5464 6260 6830 10642 11611 12520 13660 21284 23222 26605 27320 42568 46444 53210 58055 92888 106420 116110 212840 213779 232220 427558 464440 855116 1068895 1710232 2137790 3634243 4275580 7268486 8551160 14536972 18171215 29073944 36342430 72684860 145369720
- Sum of all divisors σ(n): 347937120
- Sum of proper divisors (its aliquot sum) s(n): 202567400
- 145369720 is an abundant number, because the sum of its proper divisors (202567400) is greater than itself. Its abundance is 57197680
Bases of 145369720
- Binary: 10001010101000101010011110002
- Hexadecimal: 0x8AA2A78
- Base-36: 2EJRZS
Squares and roots of 145369720
- 145369720 squared (1453697202) is 21132355492878400
- 145369720 cubed (1453697203) is 3072004600940195002048000
-
The
square root of 145369720 is 12056.9365926839 -
The
cube root of 145369720 is 525.8049270131
Scales and comparisons
How big is 145369720?- 145,369,720 seconds is equal to 4 years, 32 weeks, 2 days, 12 hours, 28 minutes, 40 seconds.
-
To count from 1 to 145,369,720 would take you about six 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 145369720 cubic inches would be around 43.8 feet tall.
Recreational maths with 145369720
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