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90097495 = 518019499
BaseRepresentation
bin1010101111011…
…00011101010111
320021112102112021
411113230131113
5141031104440
612535034011
72142546625
oct527543527
9207472467
1090097495
1146948644
122620b907
1315887437
14bd74515
157d9a84a
hex55ec757

90097495 has 4 divisors (see below), whose sum is σ = 108117000. Its totient is φ = 72077992.

The previous prime is 90097493. The next prime is 90097507. The reversal of 90097495 is 59479009.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90097495 - 21 = 90097493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90097493) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9009745 + ... + 9009754.

It is an arithmetic number, because the mean of its divisors is an integer number (27029250).

Almost surely, 290097495 is an apocalyptic number.

90097495 is a deficient number, since it is larger than the sum of its proper divisors (18019505).

90097495 is a wasteful number, since it uses less digits than its factorization.

90097495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18019504.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 90097495 is about 9491.9700273442. The cubic root of 90097495 is about 448.3022364646.

The spelling of 90097495 in words is "ninety million, ninety-seven thousand, four hundred ninety-five".

Divisors: 1 5 18019499 90097495