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87311163 = 353475443
BaseRepresentation
bin1010011010001…
…00001100111011
320002021212101210
411031010030323
5134322424123
612355214203
72110063332
oct515041473
9202255353
1087311163
1145315195
12252a7363
1315120114
14b84ad19
1579e9e93
hex534433b

87311163 has 8 divisors (see below), whose sum is σ = 116458048. Its totient is φ = 58185864.

The previous prime is 87311153. The next prime is 87311177. The reversal of 87311163 is 36111378.

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

It is not a de Polignac number, because 87311163 - 25 = 87311131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87311163.

It is not an unprimeable number, because it can be changed into a prime (87311153) by changing a digit.

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, 13320 + ... + 18762.

It is an arithmetic number, because the mean of its divisors is an integer number (14557256).

Almost surely, 287311163 is an apocalyptic number.

87311163 is a deficient number, since it is larger than the sum of its proper divisors (29146885).

87311163 is a wasteful number, since it uses less digits than its factorization.

87311163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10793.

The product of its digits is 3024, while the sum is 30.

The square root of 87311163 is about 9344.0442528918. The cubic root of 87311163 is about 443.6324010799.

The spelling of 87311163 in words is "eighty-seven million, three hundred eleven thousand, one hundred sixty-three".

Divisors: 1 3 5347 5443 16041 16329 29103721 87311163