168945040
168,945,040 is an even composite number composed of five prime numbers multiplied together.
168945040 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 168945040:
24 × 5 × 112 × 31 × 563
(2 × 2 × 2 × 2 × 5 × 11 × 11 × 31 × 563)See below for interesting mathematical facts about the number 168945040 from the Numbermatics database.
Names of 168945040
- Cardinal: 168945040 can be written as One hundred sixty-eight million, nine hundred forty-five thousand and forty.
Scientific notation
- Scientific notation: 1.6894504 × 108
Factors of 168945040
Divisors of 168945040
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 31 40 44 55 62 80 88 110 121 124 155 176 220 242 248 310 341 440 484 496 563 605 620 682 880 968 1126 1210 1240 1364 1705 1936 2252 2420 2480 2728 2815 3410 3751 4504 4840 5456 5630 6193 6820 7502 9008 9680 11260 12386 13640 15004 17453 18755 22520 24772 27280 30008 30965 34906 37510 45040 49544 60016 61930 68123 69812 75020 87265 99088 123860 136246 139624 150040 174530 191983 247720 272492 279248 300080 340615 349060 383966 495440 544984 681230 698120 767932 959915 1089968 1362460 1396240 1535864 1919830 2111813 2724920 3071728 3839660 4223626 5449840 7679320 8447252 10559065 15358640 16894504 21118130 33789008 42236260 84472520 168945040
- Sum of all divisors σ(n): 446471424
- Sum of proper divisors (its aliquot sum) s(n): 277526384
- 168945040 is an abundant number, because the sum of its proper divisors (277526384) is greater than itself. Its abundance is 108581344
Bases of 168945040
- Binary: 10100001000111100101100100002
- Hexadecimal: 0xA11E590
- Base-36: 2SL2TS
Squares and roots of 168945040
- 168945040 squared (1689450402) is 28542426540601600
- 168945040 cubed (1689450403) is 4822101393598998936064000
-
The
square root of 168945040 is 12997.8859819587 -
The
cube root of 168945040 is 552.8175416423
Scales and comparisons
How big is 168945040?- 168,945,040 seconds is equal to 5 years, 19 weeks, 2 days, 9 hours, 10 minutes, 40 seconds.
-
To count from 1 to 168,945,040 would take you about eight 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 168945040 cubic inches would be around 46.1 feet tall.
Recreational maths with 168945040
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