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88286321 = 172305489
BaseRepresentation
bin1010100001100…
…10010001110001
320011010102001202
411100302101301
5140100130241
612432140545
72121264344
oct520622161
9204112052
1088286321
1145920902
1225697755
13153a1c36
14ba2245b
157b3dd9b
hex5432471

88286321 has 6 divisors (see below), whose sum is σ = 93785430. Its totient is φ = 83092736.

The previous prime is 88286279. The next prime is 88286323. The reversal of 88286321 is 12368288.

It can be written as a sum of positive squares in 3 ways, for example, as 55338721 + 32947600 = 7439^2 + 5740^2 .

It is not a de Polignac number, because 88286321 - 218 = 88024177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88286323) 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 5 ways as a sum of consecutive naturals, for example, 152456 + ... + 153033.

It is an arithmetic number, because the mean of its divisors is an integer number (15630905).

Almost surely, 288286321 is an apocalyptic number.

It is an amenable number.

88286321 is a deficient number, since it is larger than the sum of its proper divisors (5499109).

88286321 is a wasteful number, since it uses less digits than its factorization.

88286321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305523 (or 305506 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 88286321 is about 9396.0800869299. The cubic root of 88286321 is about 445.2778990520.

The spelling of 88286321 in words is "eighty-eight million, two hundred eighty-six thousand, three hundred twenty-one".

Divisors: 1 17 289 305489 5193313 88286321