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40388341 = 740914107
BaseRepresentation
bin1001101000010…
…0011011110101
32210222221101111
42122010123311
540314411331
64001355021
71000203160
oct232043365
983887344
1040388341
11208863a4
1211638a71
1384a1536
145514ad7
15382bdb1
hex26846f5

40388341 has 8 divisors (see below), whose sum is σ = 46274240. Its totient is φ = 34531488.

The previous prime is 40388339. The next prime is 40388389. The reversal of 40388341 is 14388304.

40388341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40388341 - 21 = 40388339 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 (40388041) 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 7 ways as a sum of consecutive naturals, for example, 4191 + ... + 9916.

It is an arithmetic number, because the mean of its divisors is an integer number (5784280).

Almost surely, 240388341 is an apocalyptic number.

It is an amenable number.

40388341 is a deficient number, since it is larger than the sum of its proper divisors (5885899).

40388341 is a wasteful number, since it uses less digits than its factorization.

40388341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14523.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40388341 is about 6355.1822161131. The cubic root of 40388341 is about 343.0983831541.

The spelling of 40388341 in words is "forty million, three hundred eighty-eight thousand, three hundred forty-one".

Divisors: 1 7 409 2863 14107 98749 5769763 40388341