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88242189 = 3721735311
BaseRepresentation
bin1010100001001…
…11100000001101
320011001011112020
411100213200031
5140042222224
612431200353
72121021600
oct520474015
9204034466
1088242189
11458a0732
12256760b9
1315387b19
14ba10337
157b30c79
hex542780d

88242189 has 24 divisors (see below), whose sum is σ = 144920448. Its totient is φ = 47456640.

The previous prime is 88242139. The next prime is 88242233. The reversal of 88242189 is 98124288.

It is not a de Polignac number, because 88242189 - 213 = 88233997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88242189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88242139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15157 + ... + 20154.

It is an arithmetic number, because the mean of its divisors is an integer number (6038352).

Almost surely, 288242189 is an apocalyptic number.

It is an amenable number.

88242189 is a deficient number, since it is larger than the sum of its proper divisors (56678259).

88242189 is a wasteful number, since it uses less digits than its factorization.

88242189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35345 (or 35338 counting only the distinct ones).

The product of its digits is 73728, while the sum is 42.

The square root of 88242189 is about 9393.7313672470. The cubic root of 88242189 is about 445.2036924657.

It can be divided in two parts, 882 and 42189, that added together give a triangular number (43071 = T293).

The spelling of 88242189 in words is "eighty-eight million, two hundred forty-two thousand, one hundred eighty-nine".

Divisors: 1 3 7 17 21 49 51 119 147 357 833 2499 35311 105933 247177 600287 741531 1730239 1800861 4202009 5190717 12606027 29414063 88242189