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40300431 = 3101913183
BaseRepresentation
bin1001100110111…
…0111110001111
32210211110210120
42121232332033
540304103211
63555440023
7666355653
oct231567617
983743716
1040300431
1120826346
12115b6013
138470512
1454d0a63
153810d06
hex266ef8f

40300431 has 8 divisors (see below), whose sum is σ = 53790720. Its totient is φ = 26838552.

The previous prime is 40300411. The next prime is 40300451. The reversal of 40300431 is 13400304.

It is an interprime number because it is at equal distance from previous prime (40300411) and next prime (40300451).

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

It is not a de Polignac number, because 40300431 - 25 = 40300399 is a prime.

It is a super-2 number, since 2×403004312 = 3248249477571522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40300431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40300411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3535 + ... + 9648.

It is an arithmetic number, because the mean of its divisors is an integer number (6723840).

Almost surely, 240300431 is an apocalyptic number.

40300431 is a deficient number, since it is larger than the sum of its proper divisors (13490289).

40300431 is a wasteful number, since it uses less digits than its factorization.

40300431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14205.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 40300431 is about 6348.2620456311. The cubic root of 40300431 is about 342.8492709254.

Adding to 40300431 its reverse (13400304), we get a palindrome (53700735).

The spelling of 40300431 in words is "forty million, three hundred thousand, four hundred thirty-one".

Divisors: 1 3 1019 3057 13183 39549 13433477 40300431