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90486944 = 257139827
BaseRepresentation
bin1010110010010…
…11100010100000
320022021012202022
411121023202200
5141131040234
612551241012
72146061222
oct531134240
9208235668
1090486944
11470941a9
1226379168
1315992792
14c036412
157e25e2e
hex564b8a0

90486944 has 24 divisors (see below), whose sum is σ = 180659808. Its totient is φ = 44605120.

The previous prime is 90486887. The next prime is 90486997. The reversal of 90486944 is 44968409.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90486895 and 90486904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17642 + ... + 22185.

It is an arithmetic number, because the mean of its divisors is an integer number (7527492).

Almost surely, 290486944 is an apocalyptic number.

It is an amenable number.

90486944 is a deficient number, since it is larger than the sum of its proper divisors (90172864).

90486944 is a wasteful number, since it uses less digits than its factorization.

90486944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39908 (or 39900 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 90486944 is about 9512.4625623442. The cubic root of 90486944 is about 448.9472410864.

The spelling of 90486944 in words is "ninety million, four hundred eighty-six thousand, nine hundred forty-four".

Divisors: 1 2 4 8 16 32 71 142 284 568 1136 2272 39827 79654 159308 318616 637232 1274464 2827717 5655434 11310868 22621736 45243472 90486944