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88679889 = 32432732
BaseRepresentation
bin1010100100100…
…10010111010001
320011212101221100
411102102113101
5140200224024
612444415013
72124523644
oct522222721
9204771840
1088679889
114606a571
1225847469
13154ac10c
14bac5a5b
157bba7c9
hex54925d1

88679889 has 27 divisors (see below), whose sum is σ = 132962427. Its totient is φ = 56954016.

The previous prime is 88679879. The next prime is 88679911. The reversal of 88679889 is 98897688.

The square root of 88679889 is 9417.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 50339025 + 38340864 = 7095^2 + 6192^2 .

It is not a de Polignac number, because 88679889 - 213 = 88671697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88679849) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1214757 + ... + 1214829.

Almost surely, 288679889 is an apocalyptic number.

88679889 is the 9417-th square number.

88679889 is the 4709-th centered octagonal number.

It is an amenable number.

88679889 is a deficient number, since it is larger than the sum of its proper divisors (44282538).

88679889 is an equidigital number, since it uses as much as digits as its factorization.

88679889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 119 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 63.

The cubic root of 88679889 is about 445.9385803602.

The spelling of 88679889 in words is "eighty-eight million, six hundred seventy-nine thousand, eight hundred eighty-nine".

Divisors: 1 3 9 43 73 129 219 387 657 1849 3139 5329 5547 9417 15987 16641 28251 47961 134977 229147 404931 687441 1214793 2062323 9853321 29559963 88679889