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90488446 = 2106142643
BaseRepresentation
bin1010110010010…
…11111001111110
320022021021210221
411121023321332
5141131112241
612551251554
72146065466
oct531137176
9208237727
1090488446
1147095344
1226379bba
1315993379
14c036ba6
157e265d1
hex564be7e

90488446 has 8 divisors (see below), whose sum is σ = 135863784. Its totient is φ = 45200520.

The previous prime is 90488443. The next prime is 90488471. The reversal of 90488446 is 64488409.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90488441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19200 + ... + 23443.

It is an arithmetic number, because the mean of its divisors is an integer number (16982973).

Almost surely, 290488446 is an apocalyptic number.

90488446 is a deficient number, since it is larger than the sum of its proper divisors (45375338).

90488446 is a wasteful number, since it uses less digits than its factorization.

90488446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43706.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 90488446 is about 9512.5415110789. The cubic root of 90488446 is about 448.9497251097.

The spelling of 90488446 in words is "ninety million, four hundred eighty-eight thousand, four hundred forty-six".

Divisors: 1 2 1061 2122 42643 85286 45244223 90488446