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10520525005 = 52104105001
BaseRepresentation
bin10011100110001001…
…00111100011001101
31000011012020001012021
421303010213203031
5133021223300010
64455535210141
7521464662364
oct116304474315
930135201167
1010520525005
114509620171
122057376951
13cb87aa933
1471b33c7db
1541892c8da
hex2731278cd

10520525005 has 4 divisors (see below), whose sum is σ = 12624630012. Its totient is φ = 8416420000.

The previous prime is 10520524999. The next prime is 10520525047. The reversal of 10520525005 is 50052502501.

It is a happy number.

10520525005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7649601444 + 2870923561 = 87462^2 + 53581^2 .

It is not a de Polignac number, because 10520525005 - 29 = 10520524493 is a prime.

It is a super-2 number, since 2×105205250052 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052052496 + ... + 1052052505.

It is an arithmetic number, because the mean of its divisors is an integer number (3156157503).

Almost surely, 210520525005 is an apocalyptic number.

It is an amenable number.

10520525005 is a deficient number, since it is larger than the sum of its proper divisors (2104105007).

10520525005 is an equidigital number, since it uses as much as digits as its factorization.

10520525005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104105006.

The product of its (nonzero) digits is 2500, while the sum is 25.

The spelling of 10520525005 in words is "ten billion, five hundred twenty million, five hundred twenty-five thousand, five".

Divisors: 1 5 2104105001 10520525005