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90496287 = 32721712071
BaseRepresentation
bin1010110010011…
…01110100011111
320022021200120100
411121031310133
5141131340122
612551352143
72146130400
oct531156437
9208250510
1090496287
11470a0222
1226382653
1315996acb
14c0399a7
157e28aac
hex564dd1f

90496287 has 36 divisors (see below), whose sum is σ = 161016336. Its totient is φ = 48666240.

The previous prime is 90496279. The next prime is 90496313. The reversal of 90496287 is 78269409.

It is a happy number.

It is not a de Polignac number, because 90496287 - 23 = 90496279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90496207) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1462 + ... + 13532.

It is an arithmetic number, because the mean of its divisors is an integer number (4472676).

Almost surely, 290496287 is an apocalyptic number.

90496287 is a deficient number, since it is larger than the sum of its proper divisors (70520049).

90496287 is a wasteful number, since it uses less digits than its factorization.

90496287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12108 (or 12098 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 90496287 is about 9512.9536422712. The cubic root of 90496287 is about 448.9626921910.

The spelling of 90496287 in words is "ninety million, four hundred ninety-six thousand, two hundred eighty-seven".

Divisors: 1 3 7 9 17 21 49 51 63 119 147 153 357 441 833 1071 2499 7497 12071 36213 84497 108639 205207 253491 591479 615621 760473 1436449 1774437 1846863 4309347 5323311 10055143 12928041 30165429 90496287