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40310542 = 220155271
BaseRepresentation
bin1001100111000…
…1011100001110
32210211222200001
42121301130032
540304414132
63555554514
7666430306
oct231613416
983758601
1040310542
11208329a8
12115bba3a
138474cbc
1454d4606
153813ce7
hex267170e

40310542 has 4 divisors (see below), whose sum is σ = 60465816. Its totient is φ = 20155270.

The previous prime is 40310539. The next prime is 40310549. The reversal of 40310542 is 24501304.

40310542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40310549) by changing a digit.

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 as a sum of consecutive naturals, namely, 10077634 + ... + 10077637.

It is an arithmetic number, because the mean of its divisors is an integer number (15116454).

Almost surely, 240310542 is an apocalyptic number.

40310542 is a deficient number, since it is larger than the sum of its proper divisors (20155274).

40310542 is a wasteful number, since it uses less digits than its factorization.

40310542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20155273.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40310542 is about 6349.0583553784. The cubic root of 40310542 is about 342.8779410829.

Adding to 40310542 its reverse (24501304), we get a palindrome (64811846).

The spelling of 40310542 in words is "forty million, three hundred ten thousand, five hundred forty-two".

Divisors: 1 2 20155271 40310542