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88134905 = 524173141
BaseRepresentation
bin1010100000011…
…01010011111001
320010211201100202
411100031103321
5140030304110
612425011545
72120064035
oct520152371
9203751322
1088134905
1145828071
1225623bb5
131534b041
14b9c31c5
157b0e0a5
hex540d4f9

88134905 has 8 divisors (see below), whose sum is σ = 106202184. Its totient is φ = 70214400.

The previous prime is 88134889. The next prime is 88134913. The reversal of 88134905 is 50943188.

It can be written as a sum of positive squares in 4 ways, for example, as 31899904 + 56235001 = 5648^2 + 7499^2 .

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

It is not a de Polignac number, because 88134905 - 24 = 88134889 is a prime.

It is a super-2 number, since 2×881349052 = 15535522958718050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35366 + ... + 37775.

It is an arithmetic number, because the mean of its divisors is an integer number (13275273).

Almost surely, 288134905 is an apocalyptic number.

It is an amenable number.

88134905 is a deficient number, since it is larger than the sum of its proper divisors (18067279).

88134905 is a wasteful number, since it uses less digits than its factorization.

88134905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73387.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 88134905 is about 9388.0192266527. The cubic root of 88134905 is about 445.0231945155.

The spelling of 88134905 in words is "eighty-eight million, one hundred thirty-four thousand, nine hundred five".

Divisors: 1 5 241 1205 73141 365705 17626981 88134905