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88239169 = 1733171609
BaseRepresentation
bin1010100001001…
…10110001000001
320011001000101101
411100212301001
5140042123134
612431134401
72121010024
oct520466101
9204030341
1088239169
1145899437
1225674401
1315386635
14ba0d1bb
157b2ee14
hex5426c41

88239169 has 8 divisors (see below), whose sum is σ = 89084520. Its totient is φ = 87398016.

The previous prime is 88239149. The next prime is 88239259. The reversal of 88239169 is 96193288.

It can be written as a sum of positive squares in 4 ways, for example, as 34656769 + 53582400 = 5887^2 + 7320^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 88239169 - 215 = 88206401 is a prime.

It is a super-2 number, since 2×882391692 = 15572301891621122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88239119) 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, 54037 + ... + 55645.

It is an arithmetic number, because the mean of its divisors is an integer number (11135565).

Almost surely, 288239169 is an apocalyptic number.

It is an amenable number.

88239169 is a deficient number, since it is larger than the sum of its proper divisors (845351).

88239169 is a wasteful number, since it uses less digits than its factorization.

88239169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099.

The product of its digits is 186624, while the sum is 46.

The square root of 88239169 is about 9393.5706203765. The cubic root of 88239169 is about 445.1986135252.

The spelling of 88239169 in words is "eighty-eight million, two hundred thirty-nine thousand, one hundred sixty-nine".

Divisors: 1 173 317 1609 54841 278357 510053 88239169