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13028501 is a prime number
BaseRepresentation
bin110001101100…
…110010010101
3220111220202002
4301230302111
511313403001
61143125045
7215511653
oct61546225
926456662
1013028501
117399562
124443785
132912195
141a31dd3
15122546b
hexc6cc95

13028501 has 2 divisors, whose sum is σ = 13028502. Its totient is φ = 13028500.

The previous prime is 13028489. The next prime is 13028503. The reversal of 13028501 is 10582031.

13028501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12773476 + 255025 = 3574^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 13028501 - 26 = 13028437 is a prime.

Together with 13028503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13028503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6514250 + 6514251.

It is an arithmetic number, because the mean of its divisors is an integer number (6514251).

Almost surely, 213028501 is an apocalyptic number.

It is an amenable number.

13028501 is a deficient number, since it is larger than the sum of its proper divisors (1).

13028501 is an equidigital number, since it uses as much as digits as its factorization.

13028501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 13028501 is about 3609.5014891256. The cubic root of 13028501 is about 235.3051776823.

The spelling of 13028501 in words is "thirteen million, twenty-eight thousand, five hundred one".