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108195243 = 31323120619
BaseRepresentation
bin1100111001011…
…10110110101011
321112120212222020
412130232312223
5210144221433
614422555523
72452434012
oct634566653
9245525866
10108195243
1156089762
1230298ba3
1319552a70
1410525a79
159772cb3
hex672edab

108195243 has 16 divisors (see below), whose sum is σ = 162113280. Its totient is φ = 63686304.

The previous prime is 108195233. The next prime is 108195247. The reversal of 108195243 is 342591801.

It is not a de Polignac number, because 108195243 - 25 = 108195211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108195247) 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 15 ways as a sum of consecutive naturals, for example, 59413 + ... + 61206.

It is an arithmetic number, because the mean of its divisors is an integer number (10132080).

Almost surely, 2108195243 is an apocalyptic number.

108195243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

108195243 is a deficient number, since it is larger than the sum of its proper divisors (53918037).

108195243 is a wasteful number, since it uses less digits than its factorization.

108195243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120658.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 108195243 is about 10401.6942369981. The cubic root of 108195243 is about 476.5071140786.

The spelling of 108195243 in words is "one hundred eight million, one hundred ninety-five thousand, two hundred forty-three".

Divisors: 1 3 13 23 39 69 299 897 120619 361857 1568047 2774237 4704141 8322711 36065081 108195243