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90875748 = 22313157809
BaseRepresentation
bin1010110101010…
…10011101100100
320022222222002110
411122222131210
5141231010443
613003441020
72152300605
oct532523544
9208888073
1090875748
114732a327
1226526170
1315a9a742
14c0d7dac
157ea1233
hex56aa764

90875748 has 24 divisors (see below), whose sum is σ = 213665760. Its totient is φ = 30060160.

The previous prime is 90875731. The next prime is 90875749. The reversal of 90875748 is 84757809.

It is a junction number, because it is equal to n+sod(n) for n = 90875697 and 90875706.

It is not an unprimeable number, because it can be changed into a prime (90875749) 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, 27333 + ... + 30476.

It is an arithmetic number, because the mean of its divisors is an integer number (8902740).

Almost surely, 290875748 is an apocalyptic number.

It is an amenable number.

90875748 is an abundant number, since it is smaller than the sum of its proper divisors (122790012).

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

90875748 is a wasteful number, since it uses less digits than its factorization.

90875748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57947 (or 57945 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 90875748 is about 9532.8772151958. The cubic root of 90875748 is about 449.5893339858.

The spelling of 90875748 in words is "ninety million, eight hundred seventy-five thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 131 262 393 524 786 1572 57809 115618 173427 231236 346854 693708 7572979 15145958 22718937 30291916 45437874 90875748