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40523087 = 11171391559
BaseRepresentation
bin1001101010010…
…1010101001111
32211020210020002
42122211111033
540333214322
64004314515
71001304053
oct232452517
984223202
1040523087
1120968660
12116a2a3b
13851a977
14554bc63
153856c92
hex26a554f

40523087 has 16 divisors (see below), whose sum is σ = 47174400. Its totient is φ = 34400640.

The previous prime is 40523081. The next prime is 40523089. The reversal of 40523087 is 78032504.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40523087 - 26 = 40523023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40523081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25214 + ... + 26772.

It is an arithmetic number, because the mean of its divisors is an integer number (2948400).

Almost surely, 240523087 is an apocalyptic number.

40523087 is a deficient number, since it is larger than the sum of its proper divisors (6651313).

40523087 is a wasteful number, since it uses less digits than its factorization.

40523087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 40523087 is about 6365.7746582800. The cubic root of 40523087 is about 343.4795147353.

The spelling of 40523087 in words is "forty million, five hundred twenty-three thousand, eighty-seven".

Divisors: 1 11 17 139 187 1529 1559 2363 17149 25993 26503 216701 291533 2383711 3683917 40523087