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90382529 = 331273059
BaseRepresentation
bin1010110001100…
…10000011000001
320022001220112002
411120302003001
5141114220104
612545113345
72145144626
oct530620301
9208056462
1090382529
1147022806
1226328855
13159570b3
14c00a34d
157e0501e
hex56320c1

90382529 has 4 divisors (see below), whose sum is σ = 90655920. Its totient is φ = 90109140.

The previous prime is 90382519. The next prime is 90382549. The reversal of 90382529 is 92528309.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92528309 = 194869911.

It is a cyclic number.

It is not a de Polignac number, because 90382529 - 28 = 90382273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90382492 and 90382501.

It is not an unprimeable number, because it can be changed into a prime (90382519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136199 + ... + 136860.

It is an arithmetic number, because the mean of its divisors is an integer number (22663980).

Almost surely, 290382529 is an apocalyptic number.

It is an amenable number.

90382529 is a deficient number, since it is larger than the sum of its proper divisors (273391).

90382529 is a wasteful number, since it uses less digits than its factorization.

90382529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273390.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 90382529 is about 9506.9726516910. The cubic root of 90382529 is about 448.7744910504.

The spelling of 90382529 in words is "ninety million, three hundred eighty-two thousand, five hundred twenty-nine".

Divisors: 1 331 273059 90382529