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87364051 = 233798437
BaseRepresentation
bin1010011010100…
…01000111010011
320002101112221121
411031101013103
5134331122201
612400303111
72110403455
oct515210723
9202345847
1087364051
11453509a5
1225311a97
131513b208
14b8622d5
157a0a9a1
hex53511d3

87364051 has 4 divisors (see below), whose sum is σ = 91162512. Its totient is φ = 83565592.

The previous prime is 87364021. The next prime is 87364061. The reversal of 87364051 is 15046378.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15046378 = 27523189.

It is a cyclic number.

It is not a de Polignac number, because 87364051 - 25 = 87364019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87363998 and 87364016.

It is not an unprimeable number, because it can be changed into a prime (87364021) 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 3 ways as a sum of consecutive naturals, for example, 1899196 + ... + 1899241.

It is an arithmetic number, because the mean of its divisors is an integer number (22790628).

Almost surely, 287364051 is an apocalyptic number.

87364051 is a deficient number, since it is larger than the sum of its proper divisors (3798461).

87364051 is a wasteful number, since it uses less digits than its factorization.

87364051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798460.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 87364051 is about 9346.8738624205. The cubic root of 87364051 is about 443.7219585269.

The spelling of 87364051 in words is "eighty-seven million, three hundred sixty-four thousand, fifty-one".

Divisors: 1 23 3798437 87364051