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10105202015 = 52021040403
BaseRepresentation
bin10010110100101000…
…10010010101011111
3222002020201110011022
421122110102111133
5131143412431030
64350421314355
7505262541236
oct113224222537
928066643138
1010105202015
114316139927
121b602659bb
13c5073299c
146bc109b1d
153e223dde5
hex25a51255f

10105202015 has 4 divisors (see below), whose sum is σ = 12126242424. Its totient is φ = 8084161608.

The previous prime is 10105201993. The next prime is 10105202027. The reversal of 10105202015 is 51020250101.

10105202015 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 is a cyclic number.

It is not a de Polignac number, because 10105202015 - 28 = 10105201759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10105201984 and 10105202002.

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, 1010520197 + ... + 1010520206.

It is an arithmetic number, because the mean of its divisors is an integer number (3031560606).

Almost surely, 210105202015 is an apocalyptic number.

10105202015 is a deficient number, since it is larger than the sum of its proper divisors (2021040409).

10105202015 is an equidigital number, since it uses as much as digits as its factorization.

10105202015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021040408.

The product of its (nonzero) digits is 100, while the sum is 17.

Adding to 10105202015 its reverse (51020250101), we get a palindrome (61125452116).

It can be divided in two parts, 1010 and 5202015, that added together give a palindrome (5203025).

The spelling of 10105202015 in words is "ten billion, one hundred five million, two hundred two thousand, fifteen".

Divisors: 1 5 2021040403 10105202015