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40326691 = 3112710243
BaseRepresentation
bin1001100111010…
…1011000100011
32210212210211011
42121311120203
540310423231
64000201351
7666525346
oct231653043
983783734
1040326691
1120844049
1211609257
13847c462
1454da45d
1538189b1
hex2675623

40326691 has 8 divisors (see below), whose sum is σ = 41959424. Its totient is φ = 38714760.

The previous prime is 40326679. The next prime is 40326719. The reversal of 40326691 is 19662304.

40326691 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 40326691 - 217 = 40195619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40326631) 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, 1185 + ... + 9058.

It is an arithmetic number, because the mean of its divisors is an integer number (5244928).

Almost surely, 240326691 is an apocalyptic number.

40326691 is a deficient number, since it is larger than the sum of its proper divisors (1632733).

40326691 is a wasteful number, since it uses less digits than its factorization.

40326691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 40326691 is about 6350.3299914256. The cubic root of 40326691 is about 342.9237222966.

Adding to 40326691 its reverse (19662304), we get a palindrome (59988995).

The spelling of 40326691 in words is "forty million, three hundred twenty-six thousand, six hundred ninety-one".

Divisors: 1 31 127 3937 10243 317533 1300861 40326691