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10542005 = 52108401
BaseRepresentation
bin101000001101…
…101110110101
3201211120220122
4220031232311
510144321010
61013541325
7155414465
oct50155665
921746818
1010542005
115a50401
123644845
132251496
141585ba5
15dd3855
hexa0dbb5

10542005 has 4 divisors (see below), whose sum is σ = 12650412. Its totient is φ = 8433600.

The previous prime is 10542001. The next prime is 10542011. The reversal of 10542005 is 50024501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50024501 = 94153161.

It can be written as a sum of positive squares in 2 ways, for example, as 1385329 + 9156676 = 1177^2 + 3026^2 .

It is not a de Polignac number, because 10542005 - 22 = 10542001 is a prime.

It is a super-2 number, since 2×105420052 = 222267738840050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10542001) 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, 1054196 + ... + 1054205.

It is an arithmetic number, because the mean of its divisors is an integer number (3162603).

Almost surely, 210542005 is an apocalyptic number.

It is an amenable number.

10542005 is a deficient number, since it is larger than the sum of its proper divisors (2108407).

10542005 is an equidigital number, since it uses as much as digits as its factorization.

10542005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108406.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 10542005 is about 3246.8453920690. The cubic root of 10542005 is about 219.2675711750.

Adding to 10542005 its reverse (50024501), we get a palindrome (60566506).

The spelling of 10542005 in words is "ten million, five hundred forty-two thousand, five".

Divisors: 1 5 2108401 10542005