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88132169 = 383322993
BaseRepresentation
bin1010100000011…
…00101001001001
320010211120121102
411100030221021
5140030212134
612424551145
72120053046
oct520145111
9203746542
1088132169
1145826004
12256224b5
1315349a18
14b9c21cd
157b0d37e
hex540ca49

88132169 has 4 divisors (see below), whose sum is σ = 88158996. Its totient is φ = 88105344.

The previous prime is 88132157. The next prime is 88132183. The reversal of 88132169 is 96123188.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46076944 + 42055225 = 6788^2 + 6485^2 .

It is a cyclic number.

It is not a de Polignac number, because 88132169 - 24 = 88132153 is a prime.

It is a super-2 number, since 2×881321692 = 15534558425289122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (88132669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7664 + ... + 15329.

It is an arithmetic number, because the mean of its divisors is an integer number (22039749).

Almost surely, 288132169 is an apocalyptic number.

It is an amenable number.

88132169 is a deficient number, since it is larger than the sum of its proper divisors (26827).

88132169 is a wasteful number, since it uses less digits than its factorization.

88132169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26826.

The product of its digits is 20736, while the sum is 38.

The square root of 88132169 is about 9387.8735078824. The cubic root of 88132169 is about 445.0185894688.

The spelling of 88132169 in words is "eighty-eight million, one hundred thirty-two thousand, one hundred sixty-nine".

Divisors: 1 3833 22993 88132169