805390820

805,390,820 is an even composite number composed of five prime numbers multiplied together.

What does the number 805390820 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

805390820 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 805390820:

2² × 5 × 13 × 127 × 24391

(2 × 2 × 5 × 13 × 127 × 24391)

See below for interesting mathematical facts about the number 805390820 from the Numbermatics database.

Names of 805390820

Cardinal: 805390820 can be written as Eight hundred five million, three hundred ninety thousand, eight hundred twenty.

Scientific notation

Scientific notation: 8.0539082 × 10⁸

Factors of 805390820

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 24538

Divisors of 805390820

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 10 13 20 26 52 65 127 130 254 260 508 635 1270 1651 2540 3302 6604 8255 16510 24391 33020 48782 97564 121955 243910 317083 487820 634166 1268332 1585415 3097657 3170830 6195314 6341660 12390628 15488285 30976570 40269541 61953140 80539082 161078164 201347705 402695410 805390820
Sum of all divisors σ(n): 1835839488
Sum of proper divisors (its aliquot sum) s(n): 1030448668
805390820 is an abundant number, because the sum of its proper divisors (1030448668) is greater than itself. Its abundance is 225057848

Bases of 805390820

Binary: 110000000000010100100111100100₂
Hexadecimal: 0x300149E4
Base-36: DBIBJ8

Squares and roots of 805390820

805390820 squared (805390820²) is 648654372940272400
805390820 cubed (805390820³) is 522420277318951799259368000
The square root of 805390820 is 28379.4083800209
The cube root of 805390820 is 930.3982646941

Scales and comparisons

How big is 805390820?

805,390,820 seconds is equal to 25 years, 31 weeks, 4 days, 15 hours, 40 minutes, 20 seconds.
To count from 1 to 805,390,820 would take you about thirty-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 805390820 cubic inches would be around 77.5 feet tall.

Recreational maths with 805390820

805390820 backwards is 028093508
The number of decimal digits it has is: 9
The sum of 805390820's digits is 35
More coming soon!

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The information we have on file for 805390820 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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