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40690341 = 3243105143
BaseRepresentation
bin1001101100111…
…0001010100101
32211120021122200
42123032022211
540404042331
64012045113
71002601506
oct233161245
984507580
1040690341
1120a7228a
1211763799
138578b33
145592bad
15388b5e6
hex26ce2a5

40690341 has 12 divisors (see below), whose sum is σ = 60142368. Its totient is φ = 26495784.

The previous prime is 40690339. The next prime is 40690361. The reversal of 40690341 is 14309604.

40690341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40690341 - 21 = 40690339 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40690301) 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 in 11 ways as a sum of consecutive naturals, for example, 52185 + ... + 52958.

It is an arithmetic number, because the mean of its divisors is an integer number (5011864).

Almost surely, 240690341 is an apocalyptic number.

It is an amenable number.

40690341 is a deficient number, since it is larger than the sum of its proper divisors (19452027).

40690341 is a wasteful number, since it uses less digits than its factorization.

40690341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105192 (or 105189 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 40690341 is about 6378.8981023371. The cubic root of 40690341 is about 343.9514224041.

Adding to 40690341 its reverse (14309604), we get a palindrome (54999945).

The spelling of 40690341 in words is "forty million, six hundred ninety thousand, three hundred forty-one".

Divisors: 1 3 9 43 129 387 105143 315429 946287 4521149 13563447 40690341