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87314428865 = 579743297509
BaseRepresentation
bin101000101010001011…
…0000111001111000001
322100101002111120002202
41101110112013033001
52412304443210430
6104040043122545
76210506254046
oct1212426071701
9270332446082
1087314428865
113403679a814
1214b09513455
13830661b231
1443243831cd
1524106e6d45
hex14545873c1

87314428865 has 16 divisors (see below), whose sum is σ = 106246771200. Its totient is φ = 68874292032.

The previous prime is 87314428837. The next prime is 87314428871. The reversal of 87314428865 is 56882441378.

It is a cyclic number.

It is not a de Polignac number, because 87314428865 - 26 = 87314428801 is a prime.

It is a super-2 number, since 2×873144288652 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87314428865.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144731 + ... + 442239.

It is an arithmetic number, because the mean of its divisors is an integer number (6640423200).

Almost surely, 287314428865 is an apocalyptic number.

It is an amenable number.

87314428865 is a deficient number, since it is larger than the sum of its proper divisors (18932342335).

87314428865 is a wasteful number, since it uses less digits than its factorization.

87314428865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298336.

The product of its digits is 10321920, while the sum is 56.

The spelling of 87314428865 in words is "eighty-seven billion, three hundred fourteen million, four hundred twenty-eight thousand, eight hundred sixty-five".

Divisors: 1 5 79 395 743 3715 58697 293485 297509 1487545 23503211 117516055 221049187 1105245935 17462885773 87314428865