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13090901 = 17770053
BaseRepresentation
bin110001111100…
…000001010101
3220122002100012
4301330001111
511322402101
61144330005
7216161615
oct61740125
926562305
1013090901
11743142a
124473905
1329346c5
141a4aa45
151238bbb
hexc7c055

13090901 has 4 divisors (see below), whose sum is σ = 13860972. Its totient is φ = 12320832.

The previous prime is 13090873. The next prime is 13090907. The reversal of 13090901 is 10909031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3511876 + 9579025 = 1874^2 + 3095^2 .

It is a cyclic number.

It is not a de Polignac number, because 13090901 - 218 = 12828757 is a prime.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 13 and 90901 contains 13090901 itself.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13090907) 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, 385010 + ... + 385043.

It is an arithmetic number, because the mean of its divisors is an integer number (3465243).

Almost surely, 213090901 is an apocalyptic number.

It is an amenable number.

13090901 is a deficient number, since it is larger than the sum of its proper divisors (770071).

13090901 is an equidigital number, since it uses as much as digits as its factorization.

13090901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770070.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 13090901 is about 3618.1350168284. The cubic root of 13090901 is about 235.6802442073.

Adding to 13090901 its reverse (10909031), we get a palindrome (23999932).

The spelling of 13090901 in words is "thirteen million, ninety thousand, nine hundred one".

Divisors: 1 17 770053 13090901