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90388041 = 3297114633
BaseRepresentation
bin1010110001100…
…11011001001001
320022002012002020
411120303121021
5141114404131
612545155053
72145166662
oct530633111
9208065066
1090388041
1147026967
122632ba89
1315959763
14c00c369
157e06996
hex5633649

90388041 has 16 divisors (see below), whose sum is σ = 126437760. Its totient is φ = 57357440.

The previous prime is 90388009. The next prime is 90388043. The reversal of 90388041 is 14088309.

It is a cyclic number.

It is not a de Polignac number, because 90388041 - 25 = 90388009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90387993 and 90388011.

It is not an unprimeable number, because it can be changed into a prime (90388043) 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 15 ways as a sum of consecutive naturals, for example, 1140 + ... + 13493.

It is an arithmetic number, because the mean of its divisors is an integer number (7902360).

Almost surely, 290388041 is an apocalyptic number.

It is an amenable number.

90388041 is a deficient number, since it is larger than the sum of its proper divisors (36049719).

90388041 is a wasteful number, since it uses less digits than its factorization.

90388041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14736.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 90388041 is about 9507.2625397640. The cubic root of 90388041 is about 448.7836137379.

The spelling of 90388041 in words is "ninety million, three hundred eighty-eight thousand, forty-one".

Divisors: 1 3 29 71 87 213 2059 6177 14633 43899 424357 1038943 1273071 3116829 30129347 90388041