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10087013 = 53190321
BaseRepresentation
bin100110011110…
…101001100101
3200222110210002
4212132221211
510040241023
61000111045
7151511126
oct46365145
920873702
1010087013
11576a582
123465485
132122361
1414a804d
15d43b28
hex99ea65

10087013 has 4 divisors (see below), whose sum is σ = 10277388. Its totient is φ = 9896640.

The previous prime is 10087009. The next prime is 10087019. The reversal of 10087013 is 31078001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9132484 + 954529 = 3022^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 10087013 - 22 = 10087009 is a prime.

It is a super-3 number, since 3×100870133 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10087019) 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, 95108 + ... + 95213.

It is an arithmetic number, because the mean of its divisors is an integer number (2569347).

Almost surely, 210087013 is an apocalyptic number.

It is an amenable number.

10087013 is a deficient number, since it is larger than the sum of its proper divisors (190375).

10087013 is an equidigital number, since it uses as much as digits as its factorization.

10087013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190374.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 10087013 is about 3176.0058249317. The cubic root of 10087013 is about 216.0665447119.

The spelling of 10087013 in words is "ten million, eighty-seven thousand, thirteen".

Divisors: 1 53 190321 10087013