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130544105 = 5171535813
BaseRepresentation
bin1111100011111…
…11000111101001
3100002122022211212
413301333013221
5231404402410
620542002505
73143415026
oct761770751
9302568755
10130544105
116776379a
1237876435
1321079343
14134a254d
15b6d9b05
hex7c7f1e9

130544105 has 8 divisors (see below), whose sum is σ = 165867912. Its totient is φ = 98291968.

The previous prime is 130544047. The next prime is 130544171. The reversal of 130544105 is 501445031.

It can be written as a sum of positive squares in 4 ways, for example, as 1857769 + 128686336 = 1363^2 + 11344^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130544105 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 767822 + ... + 767991.

It is an arithmetic number, because the mean of its divisors is an integer number (20733489).

Almost surely, 2130544105 is an apocalyptic number.

It is an amenable number.

130544105 is a deficient number, since it is larger than the sum of its proper divisors (35323807).

130544105 is a wasteful number, since it uses less digits than its factorization.

130544105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535835.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 130544105 is about 11425.5899191245. The cubic root of 130544105 is about 507.2854683052.

Adding to 130544105 its reverse (501445031), we get a palindrome (631989136).

The spelling of 130544105 in words is "one hundred thirty million, five hundred forty-four thousand, one hundred five".

Divisors: 1 5 17 85 1535813 7679065 26108821 130544105