51269920
51,269,920 is an even composite number composed of four prime numbers multiplied together.
51269920 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 51269920:
25 × 5 × 13 × 1572
(2 × 2 × 2 × 2 × 2 × 5 × 13 × 157 × 157)See below for interesting mathematical facts about the number 51269920 from the Numbermatics database.
Names of 51269920
- Cardinal: 51269920 can be written as Fifty-one million, two hundred sixty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 5.126992 × 107
Factors of 51269920
Divisors of 51269920
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 157 160 208 260 314 416 520 628 785 1040 1256 1570 2041 2080 2512 3140 4082 5024 6280 8164 10205 12560 16328 20410 24649 25120 32656 40820 49298 65312 81640 98596 123245 163280 197192 246490 320437 326560 394384 492980 640874 788768 985960 1281748 1602185 1971920 2563496 3204370 3943840 5126992 6408740 10253984 12817480 25634960 51269920
- Sum of all divisors σ(n): 131278644
- Sum of proper divisors (its aliquot sum) s(n): 80008724
- 51269920 is an abundant number, because the sum of its proper divisors (80008724) is greater than itself. Its abundance is 28738804
Bases of 51269920
- Binary: 110000111001010001001000002
- Hexadecimal: 0x30E5120
- Base-36: UIW4G
Squares and roots of 51269920
- 51269920 squared (512699202) is 2628604696806400
- 51269920 cubed (512699203) is 134768352516888383488000
-
The
square root of 51269920 is 7160.3016696225 -
The
cube root of 51269920 is 371.4960609963
Scales and comparisons
How big is 51269920?- 51,269,920 seconds is equal to 1 year, 32 weeks, 5 days, 9 hours, 38 minutes, 40 seconds.
-
To count from 1 to 51,269,920 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 51269920 cubic inches would be around 31 feet tall.
Recreational maths with 51269920
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