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90883480 = 2352272087
BaseRepresentation
bin1010110101011…
…00010110011000
320100000100200211
411122230112120
5141231232410
613003540504
72152332262
oct532542630
9210010624
1090883480
1147335116
122652a734
1315aa110c
14c0dab32
157ea368a
hex56ac598

90883480 has 16 divisors (see below), whose sum is σ = 204487920. Its totient is φ = 36353376.

The previous prime is 90883447. The next prime is 90883487. The reversal of 90883480 is 8438809.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 2272087 = 90883480 / (9 + 0 + 8 + 8 + 3 + 4 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90883487) 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 in 3 ways as a sum of consecutive naturals, for example, 1136004 + ... + 1136083.

It is an arithmetic number, because the mean of its divisors is an integer number (12780495).

Almost surely, 290883480 is an apocalyptic number.

It is an amenable number.

90883480 is an abundant number, since it is smaller than the sum of its proper divisors (113604440).

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

90883480 is a wasteful number, since it uses less digits than its factorization.

90883480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272098 (or 2272094 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 90883480 is about 9533.2827504486. The cubic root of 90883480 is about 449.6020844582.

The spelling of 90883480 in words is "ninety million, eight hundred eighty-three thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2272087 4544174 9088348 11360435 18176696 22720870 45441740 90883480