55781250
55,781,250 is an even composite number composed of five prime numbers multiplied together.
55781250 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 55781250:
2 × 3 × 57 × 7 × 17
(2 × 3 × 5 × 5 × 5 × 5 × 5 × 5 × 5 × 7 × 17)See below for interesting mathematical facts about the number 55781250 from the Numbermatics database.
Names of 55781250
- Cardinal: 55781250 can be written as Fifty-five million, seven hundred eighty-one thousand, two hundred fifty.
Scientific notation
- Scientific notation: 5.578125 × 107
Factors of 55781250
Divisors of 55781250
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 5 6 7 10 14 15 17 21 25 30 34 35 42 50 51 70 75 85 102 105 119 125 150 170 175 210 238 250 255 350 357 375 425 510 525 595 625 714 750 850 875 1050 1190 1250 1275 1750 1785 1875 2125 2550 2625 2975 3125 3570 3750 4250 4375 5250 5950 6250 6375 8750 8925 9375 10625 12750 13125 14875 15625 17850 18750 21250 21875 26250 29750 31250 31875 43750 44625 46875 53125 63750 65625 74375 78125 89250 93750 106250 109375 131250 148750 156250 159375 218750 223125 234375 265625 318750 328125 371875 446250 468750 531250 546875 656250 743750 796875 1093750 1115625 1328125 1593750 1640625 1859375 2231250 2656250 3281250 3718750 3984375 5578125 7968750 9296875 11156250 18593750 27890625 55781250
- Sum of all divisors σ(n): 168749568
- Sum of proper divisors (its aliquot sum) s(n): 112968318
- 55781250 is an abundant number, because the sum of its proper divisors (112968318) is greater than itself. Its abundance is 57187068
Bases of 55781250
- Binary: 110101001100100111100000102
- Hexadecimal: 0x3532782
- Base-36: X7L36
Squares and roots of 55781250
- 55781250 squared (557812502) is 3111547851562500
- 55781250 cubed (557812503) is 173566028594970703125000
-
The
square root of 55781250 is 7468.6846231449 -
The
cube root of 55781250 is 382.0874273363
Scales and comparisons
How big is 55781250?- 55,781,250 seconds is equal to 1 year, 40 weeks, 1 day, 14 hours, 47 minutes, 30 seconds.
-
To count from 1 to 55,781,250 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 55781250 cubic inches would be around 31.8 feet tall.
Recreational maths with 55781250
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