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13180501 is a prime number
BaseRepresentation
bin110010010001…
…111001010101
3220210122020201
4302101321111
511333234001
61150300501
7220014055
oct62217125
926718221
1013180501
117492784
1244b7731
132966419
141a71565
151255501
hexc91e55

13180501 has 2 divisors, whose sum is σ = 13180502. Its totient is φ = 13180500.

The previous prime is 13180499. The next prime is 13180523. The reversal of 13180501 is 10508131.

13180501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8122500 + 5058001 = 2850^2 + 2249^2 .

It is a cyclic number.

It is not a de Polignac number, because 13180501 - 21 = 13180499 is a prime.

It is a super-2 number, since 2×131805012 = 347451213222002, which contains 22 as substring.

Together with 13180499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13180571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6590250 + 6590251.

It is an arithmetic number, because the mean of its divisors is an integer number (6590251).

Almost surely, 213180501 is an apocalyptic number.

It is an amenable number.

13180501 is a deficient number, since it is larger than the sum of its proper divisors (1).

13180501 is an equidigital number, since it uses as much as digits as its factorization.

13180501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 13180501 is about 3630.4959716270. The cubic root of 13180501 is about 236.2167225415.

Adding to 13180501 its reverse (10508131), we get a palindrome (23688632).

The spelling of 13180501 in words is "thirteen million, one hundred eighty thousand, five hundred one".