51221250
51,221,250 is an even composite number composed of five prime numbers multiplied together.
51221250 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 51221250:
2 × 32 × 54 × 29 × 157
(2 × 3 × 3 × 5 × 5 × 5 × 5 × 29 × 157)See below for interesting mathematical facts about the number 51221250 from the Numbermatics database.
Names of 51221250
- Cardinal: 51221250 can be written as Fifty-one million, two hundred twenty-one thousand, two hundred fifty.
Scientific notation
- Scientific notation: 5.122125 × 107
Factors of 51221250
Divisors of 51221250
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 5 6 9 10 15 18 25 29 30 45 50 58 75 87 90 125 145 150 157 174 225 250 261 290 314 375 435 450 471 522 625 725 750 785 870 942 1125 1250 1305 1413 1450 1570 1875 2175 2250 2355 2610 2826 3625 3750 3925 4350 4553 4710 5625 6525 7065 7250 7850 9106 10875 11250 11775 13050 13659 14130 18125 19625 21750 22765 23550 27318 32625 35325 36250 39250 40977 45530 54375 58875 65250 68295 70650 81954 98125 108750 113825 117750 136590 163125 176625 196250 204885 227650 294375 326250 341475 353250 409770 569125 588750 682950 883125 1024425 1138250 1707375 1766250 2048850 2845625 3414750 5122125 5691250 8536875 10244250 17073750 25610625 51221250
- Sum of all divisors σ(n): 144375660
- Sum of proper divisors (its aliquot sum) s(n): 93154410
- 51221250 is an abundant number, because the sum of its proper divisors (93154410) is greater than itself. Its abundance is 41933160
Bases of 51221250
- Binary: 110000110110010011000000102
- Hexadecimal: 0x30D9302
- Base-36: UHUKI
Squares and roots of 51221250
- 51221250 squared (512212502) is 2623616451562500
- 51221250 cubed (512212503) is 134384914169595703125000
-
The
square root of 51221250 is 7156.9022628509 -
The
cube root of 51221250 is 371.3784713349
Scales and comparisons
How big is 51221250?- 51,221,250 seconds is equal to 1 year, 32 weeks, 4 days, 20 hours, 7 minutes, 30 seconds.
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To count from 1 to 51,221,250 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 51221250 cubic inches would be around 30.9 feet tall.
Recreational maths with 51221250
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