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88189055 = 517637811
BaseRepresentation
bin1010100000110…
…10100001111111
320010221110122022
411100122201333
5140034022210
612430110355
72120410643
oct520324177
9203843568
1088189055
1145864819
122564b3bb
1315369896
14b9d8c23
157b20155
hex541a87f

88189055 has 4 divisors (see below), whose sum is σ = 105826872. Its totient is φ = 70551240.

The previous prime is 88189027. The next prime is 88189067. The reversal of 88189055 is 55098188.

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

It is a de Polignac number, because none of the positive numbers 2k-88189055 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88188997 and 88189015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8818901 + ... + 8818910.

It is an arithmetic number, because the mean of its divisors is an integer number (26456718).

Almost surely, 288189055 is an apocalyptic number.

88189055 is a deficient number, since it is larger than the sum of its proper divisors (17637817).

88189055 is a wasteful number, since it uses less digits than its factorization.

88189055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17637816.

The product of its (nonzero) digits is 115200, while the sum is 44.

The square root of 88189055 is about 9390.9027787535. The cubic root of 88189055 is about 445.1143164624.

The spelling of 88189055 in words is "eighty-eight million, one hundred eighty-nine thousand, fifty-five".

Divisors: 1 5 17637811 88189055