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40347080 = 2353892593
BaseRepresentation
bin1001100111101…
…0010111001000
32210220211210022
42121322113020
540312101310
64000440012
7666641654
oct231722710
983824708
1040347080
11208583a4
1211619008
138488817
145503a64
15381ea55
hex267a5c8

40347080 has 32 divisors (see below), whose sum is σ = 91049400. Its totient is φ = 16091136.

The previous prime is 40347079. The next prime is 40347101. The reversal of 40347080 is 8074304.

40347080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29311396 + 11035684 = 5414^2 + 3322^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14264 + ... + 16856.

Almost surely, 240347080 is an apocalyptic number.

40347080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40347080 is an abundant number, since it is smaller than the sum of its proper divisors (50702320).

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

40347080 is a wasteful number, since it uses less digits than its factorization.

40347080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993 (or 2989 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 40347080 is about 6351.9351382079. The cubic root of 40347080 is about 342.9815061413.

The spelling of 40347080 in words is "forty million, three hundred forty-seven thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 389 778 1556 1945 2593 3112 3890 5186 7780 10372 12965 15560 20744 25930 51860 103720 1008677 2017354 4034708 5043385 8069416 10086770 20173540 40347080