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8079426240 = 2635194391009
BaseRepresentation
bin1111000011001001…
…00100001011000000
3202212001212101012220
413201210210023000
5113021313114430
63413414051040
7404133663354
oct74144441300
922761771186
108079426240
113476697576
121695949a80
139b9b322b2
14569061464
15324489110
hex1e19242c0

8079426240 has 224 divisors, whose sum is σ = 27090624000. Its totient is φ = 2034450432.

The previous prime is 8079426197. The next prime is 8079426247. The reversal of 8079426240 is 426249708.

It is a junction number, because it is equal to n+sod(n) for n = 8079426192 and 8079426201.

It is not an unprimeable number, because it can be changed into a prime (8079426247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8006856 + ... + 8007864.

Almost surely, 28079426240 is an apocalyptic number.

8079426240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8079426240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13545312000).

8079426240 is an abundant number, since it is smaller than the sum of its proper divisors (19011197760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8079426240 is a wasteful number, since it uses less digits than its factorization.

8079426240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 8079426240 is about 89885.6286622061. The cubic root of 8079426240 is about 2006.5970687492.

The spelling of 8079426240 in words is "eight billion, seventy-nine million, four hundred twenty-six thousand, two hundred forty".