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40000591 is a prime number
BaseRepresentation
bin1001100010010…
…1110001001111
32210021020111101
42120211301033
540220004331
63545203531
7663666541
oct230456117
983236441
1040000591
1120641044
12114905a7
138396bb7
145453691
1537a2061
hex2625c4f

40000591 has 2 divisors, whose sum is σ = 40000592. Its totient is φ = 40000590.

The previous prime is 40000579. The next prime is 40000603. The reversal of 40000591 is 19500004.

40000591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (40000579) and next prime (40000603).

It is a cyclic number.

It is not a de Polignac number, because 40000591 - 27 = 40000463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40000501) 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, 20000295 + 20000296.

It is an arithmetic number, because the mean of its divisors is an integer number (20000296).

Almost surely, 240000591 is an apocalyptic number.

40000591 is a deficient number, since it is larger than the sum of its proper divisors (1).

40000591 is an equidigital number, since it uses as much as digits as its factorization.

40000591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 40000591 is about 6324.6020428166. The cubic root of 40000591 is about 341.9968736534.

Adding to 40000591 its reverse (19500004), we get a palindrome (59500595).

The spelling of 40000591 in words is "forty million, five hundred ninety-one", and thus it is an aban number.