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BaseRepresentation
bin1010110101010…
…10100101000101
320022222222202021
411122222211011
5141231014404
613003443141
72152302163
oct532524505
9208888667
1090876229
114732a724
12265264b1
1315a9aa22
14c0d8233
157ea1454
hex56aa945

90876229 has 2 divisors, whose sum is σ = 90876230. Its totient is φ = 90876228.

The previous prime is 90876217. The next prime is 90876281. The reversal of 90876229 is 92267809.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90212004 + 664225 = 9498^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 90876229 - 29 = 90875717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90876029) 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, 45438114 + 45438115.

It is an arithmetic number, because the mean of its divisors is an integer number (45438115).

Almost surely, 290876229 is an apocalyptic number.

It is an amenable number.

90876229 is a deficient number, since it is larger than the sum of its proper divisors (1).

90876229 is an equidigital number, since it uses as much as digits as its factorization.

90876229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 90876229 is about 9532.9024436422. The cubic root of 90876229 is about 449.5901272011.

The spelling of 90876229 in words is "ninety million, eight hundred seventy-six thousand, two hundred twenty-nine".