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90289922 = 267192
BaseRepresentation
bin1010110000110…
…11011100000010
320021220012111012
411120123130002
5141103234142
612543120522
72144310632
oct530333402
9207805435
1090289922
1146a6a178
12262a3142
1315923bb8
14bdc46c2
157dd7882
hex561b702

90289922 has 6 divisors (see below), whose sum is σ = 135455043. Its totient is φ = 45138242.

The previous prime is 90289921. The next prime is 90289933. The reversal of 90289922 is 22998209.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45144961 + 45144961 = 6719^2 + 6719^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=6719.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90289922.

It is not an unprimeable number, because it can be changed into a prime (90289921) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10079 + ... + 16797.

Almost surely, 290289922 is an apocalyptic number.

90289922 is a deficient number, since it is larger than the sum of its proper divisors (45165121).

90289922 is an frugal number, since it uses more digits than its factorization.

90289922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13440 (or 6721 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 90289922 is about 9502.1009255848. The cubic root of 90289922 is about 448.6211654685.

The spelling of 90289922 in words is "ninety million, two hundred eighty-nine thousand, nine hundred twenty-two".

Divisors: 1 2 6719 13438 45144961 90289922