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10106556205 = 52021311241
BaseRepresentation
bin10010110100110010…
…11100111100101101
3222002100021020202111
421122121130330231
5131144234244310
64350510324021
7505310211304
oct113231347455
928070236674
1010106556205
114316984299
121b607b9611
13c50ab8195
146bc37d43b
153e240a28a
hex25a65cf2d

10106556205 has 4 divisors (see below), whose sum is σ = 12127867452. Its totient is φ = 8085244960.

The previous prime is 10106556203. The next prime is 10106556223. The reversal of 10106556205 is 50265560101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50265560101 = 172956797653.

It can be written as a sum of positive squares in 2 ways, for example, as 5127419236 + 4979136969 = 71606^2 + 70563^2 .

It is not a de Polignac number, because 10106556205 - 21 = 10106556203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10106556203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010655616 + ... + 1010655625.

It is an arithmetic number, because the mean of its divisors is an integer number (3031966863).

Almost surely, 210106556205 is an apocalyptic number.

It is an amenable number.

10106556205 is a deficient number, since it is larger than the sum of its proper divisors (2021311247).

10106556205 is an equidigital number, since it uses as much as digits as its factorization.

10106556205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021311246.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 10106556205 in words is "ten billion, one hundred six million, five hundred fifty-six thousand, two hundred five".

Divisors: 1 5 2021311241 10106556205