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90304248 = 23316722531
BaseRepresentation
bin1010110000111…
…10111011111000
320021220221010210
411120132323320
5141104213443
612543311120
72144400456
oct530367370
9207827123
1090304248
1146a79a11
12262ab4a0
131592a588
14bdc99d6
157ddbc33
hex561eef8

90304248 has 32 divisors (see below), whose sum is σ = 227122560. Its totient is φ = 29919840.

The previous prime is 90304241. The next prime is 90304267. The reversal of 90304248 is 84240309.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90304241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7258 + ... + 15273.

It is an arithmetic number, because the mean of its divisors is an integer number (7097580).

Almost surely, 290304248 is an apocalyptic number.

It is an amenable number.

90304248 is an abundant number, since it is smaller than the sum of its proper divisors (136818312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90304248 is a wasteful number, since it uses less digits than its factorization.

90304248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22707 (or 22703 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 90304248 is about 9502.8547289749. The cubic root of 90304248 is about 448.6448912871.

The spelling of 90304248 in words is "ninety million, three hundred four thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 167 334 501 668 1002 1336 2004 4008 22531 45062 67593 90124 135186 180248 270372 540744 3762677 7525354 11288031 15050708 22576062 30101416 45152124 90304248