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90960505 = 5191317309
BaseRepresentation
bin1010110101111…
…11001001111001
320100011021100121
411122333021321
5141241214010
613005333241
72153102656
oct532771171
9210137317
1090960505
1147387a79
1226567221
1315aca1ac
14c11ac2d
157ebb3da
hex56bf279

90960505 has 16 divisors (see below), whose sum is σ = 115790400. Its totient is φ = 68402880.

The previous prime is 90960481. The next prime is 90960533. The reversal of 90960505 is 50506909.

It is not a de Polignac number, because 90960505 - 219 = 90436217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8791 + ... + 16099.

It is an arithmetic number, because the mean of its divisors is an integer number (7236900).

Almost surely, 290960505 is an apocalyptic number.

90960505 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

90960505 is a deficient number, since it is larger than the sum of its proper divisors (24829895).

90960505 is a wasteful number, since it uses less digits than its factorization.

90960505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7464.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 90960505 is about 9537.3216890278. The cubic root of 90960505 is about 449.7290632441.

The spelling of 90960505 in words is "ninety million, nine hundred sixty thousand, five hundred five".

Divisors: 1 5 19 95 131 655 2489 7309 12445 36545 138871 694355 957479 4787395 18192101 90960505