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15382013 is a prime number
BaseRepresentation
bin111010101011…
…010111111101
31001221111011012
4322223113331
512414211023
61305405005
7244513343
oct72532775
931844135
1015382013
118756809
125199765
1332574aa
142085993
15153c978
hexeab5fd

15382013 has 2 divisors, whose sum is σ = 15382014. Its totient is φ = 15382012.

The previous prime is 15381979. The next prime is 15382021. The reversal of 15382013 is 31028351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10484644 + 4897369 = 3238^2 + 2213^2 .

It is a cyclic number.

It is not a de Polignac number, because 15382013 - 214 = 15365629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15382013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15382063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7691006 + 7691007.

It is an arithmetic number, because the mean of its divisors is an integer number (7691007).

Almost surely, 215382013 is an apocalyptic number.

It is an amenable number.

15382013 is a deficient number, since it is larger than the sum of its proper divisors (1).

15382013 is an equidigital number, since it uses as much as digits as its factorization.

15382013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 15382013 is about 3921.9909484852. The cubic root of 15382013 is about 248.6972929413.

The spelling of 15382013 in words is "fifteen million, three hundred eighty-two thousand, thirteen".