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87195327393 = 3231307966871
BaseRepresentation
bin101000100110100111…
…1110001101110100001
322100001210101120121010
41101031033301232201
52412034000434033
6104020150251133
76204532024326
oct1211517615641
9270053346533
1087195327393
1133a85542049
1214a95656aa9
1382b7a4a2a5
14431261cb4d
15240501c863
hex144d3f1ba1

87195327393 has 16 divisors (see below), whose sum is σ = 121408183296. Its totient is φ = 55560217680.

The previous prime is 87195327391. The next prime is 87195327463. The reversal of 87195327393 is 39372359178.

It is not a de Polignac number, because 87195327393 - 21 = 87195327391 is a prime.

It is a super-3 number, since 3×871953273933 (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (87195327391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393253 + ... + 573618.

It is an arithmetic number, because the mean of its divisors is an integer number (7588011456).

Almost surely, 287195327393 is an apocalyptic number.

It is an amenable number.

87195327393 is a deficient number, since it is larger than the sum of its proper divisors (34212855903).

87195327393 is a wasteful number, since it uses less digits than its factorization.

87195327393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968204.

The product of its digits is 8573040, while the sum is 57.

The spelling of 87195327393 in words is "eighty-seven billion, one hundred ninety-five million, three hundred twenty-seven thousand, three hundred ninety-three".

Divisors: 1 3 23 69 1307 3921 30061 90183 966871 2900613 22238033 66714099 1263700397 3791101191 29065109131 87195327393