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87116227 = 117919657
BaseRepresentation
bin1010011000101…
…00100111000011
320001220221222221
411030110213003
5134300204402
612351111511
72105322112
oct514244703
9201827887
1087116227
11451a1790
1225212597
1315082483
14b7d9c79
1579ac337
hex53149c3

87116227 has 4 divisors (see below), whose sum is σ = 95035896. Its totient is φ = 79196560.

The previous prime is 87116207. The next prime is 87116233. The reversal of 87116227 is 72261178.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87116227 - 223 = 78727619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87116192 and 87116201.

It is not an unprimeable number, because it can be changed into a prime (87116207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3959818 + ... + 3959839.

It is an arithmetic number, because the mean of its divisors is an integer number (23758974).

Almost surely, 287116227 is an apocalyptic number.

87116227 is a deficient number, since it is larger than the sum of its proper divisors (7919669).

87116227 is a wasteful number, since it uses less digits than its factorization.

87116227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7919668.

The product of its digits is 9408, while the sum is 34.

The square root of 87116227 is about 9333.6073947858. The cubic root of 87116227 is about 443.3019951969.

The spelling of 87116227 in words is "eighty-seven million, one hundred sixteen thousand, two hundred twenty-seven".

Divisors: 1 11 7919657 87116227