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10130545 = 52026109
BaseRepresentation
bin100110101001…
…010001110001
3201001200111101
4212221101301
510043134140
61001044401
7152052055
oct46512161
921050441
1010130545
11579a257
123486701
132139109
1414b9c65
15d5199a
hex9a9471

10130545 has 4 divisors (see below), whose sum is σ = 12156660. Its totient is φ = 8104432.

The previous prime is 10130543. The next prime is 10130573. The reversal of 10130545 is 54503101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54503101 = 419130079.

It can be written as a sum of positive squares in 2 ways, for example, as 1034289 + 9096256 = 1017^2 + 3016^2 .

It is a cyclic number.

It is not a de Polignac number, because 10130545 - 21 = 10130543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10130543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013050 + ... + 1013059.

It is an arithmetic number, because the mean of its divisors is an integer number (3039165).

Almost surely, 210130545 is an apocalyptic number.

It is an amenable number.

10130545 is a deficient number, since it is larger than the sum of its proper divisors (2026115).

10130545 is an equidigital number, since it uses as much as digits as its factorization.

10130545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026114.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 10130545 is about 3182.8517087668. The cubic root of 10130545 is about 216.3769210493.

Adding to 10130545 its reverse (54503101), we get a palindrome (64633646).

The spelling of 10130545 in words is "ten million, one hundred thirty thousand, five hundred forty-five".

Divisors: 1 5 2026109 10130545