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88105393 = 2929310369
BaseRepresentation
bin1010100000001…
…10000110110001
320010210012212201
411100012012301
5140023333033
612424223201
72116612015
oct520060661
9203705781
1088105393
1145807982
122560ab01
131533a78c
14b9b6545
157b0547d
hex54061b1

88105393 has 8 divisors (see below), whose sum is σ = 91463400. Its totient is φ = 84768768.

The previous prime is 88105363. The next prime is 88105397. The reversal of 88105393 is 39350188.

It can be written as a sum of positive squares in 4 ways, for example, as 13749264 + 74356129 = 3708^2 + 8623^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-88105393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88105397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3313 + ... + 13681.

It is an arithmetic number, because the mean of its divisors is an integer number (11432925).

Almost surely, 288105393 is an apocalyptic number.

It is an amenable number.

88105393 is a deficient number, since it is larger than the sum of its proper divisors (3358007).

88105393 is a wasteful number, since it uses less digits than its factorization.

88105393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10691.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 88105393 is about 9386.4473044917. The cubic root of 88105393 is about 444.9735169191.

The spelling of 88105393 in words is "eighty-eight million, one hundred five thousand, three hundred ninety-three".

Divisors: 1 29 293 8497 10369 300701 3038117 88105393