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40580306 = 2131560781
BaseRepresentation
bin1001101011001…
…1010011010010
32211100200201022
42122303103102
540342032211
64005435442
71001632634
oct232632322
984320638
1040580306
11209a7648
121170bb82
13853aa20
145564a54
153868bdb
hex26b34d2

40580306 has 8 divisors (see below), whose sum is σ = 65552844. Its totient is φ = 18729360.

The previous prime is 40580297. The next prime is 40580321. The reversal of 40580306 is 60308504.

40580306 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 2 ways, for example, as 40513225 + 67081 = 6365^2 + 259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×405803062 = 3293522470107272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 1560781 = 40580306 / (4 + 0 + 5 + 8 + 0 + 3 + 0 + 6).

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 3 ways as a sum of consecutive naturals, for example, 780365 + ... + 780416.

Almost surely, 240580306 is an apocalyptic number.

40580306 is a deficient number, since it is larger than the sum of its proper divisors (24972538).

40580306 is a wasteful number, since it uses less digits than its factorization.

40580306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560796.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 40580306 is about 6370.2673413288. The cubic root of 40580306 is about 343.6411041955.

The spelling of 40580306 in words is "forty million, five hundred eighty thousand, three hundred six".

Divisors: 1 2 13 26 1560781 3121562 20290153 40580306