Search a number
-
+
15030019 is a prime number
BaseRepresentation
bin111001010101…
…011100000011
31001021121022101
4321111130003
512321430034
61254051231
7241516204
oct71253403
931247271
1015030019
118536304
125049b17
133163204
141dd35ab
1514bd514
hexe55703

15030019 has 2 divisors, whose sum is σ = 15030020. Its totient is φ = 15030018.

The previous prime is 15029999. The next prime is 15030049. The reversal of 15030019 is 91003051.

15030019 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 is an emirp because it is prime and its reverse (91003051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15030019 - 27 = 15029891 is a prime.

It is a super-2 number, since 2×150300192 = 451802942280722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15029978 and 15030005.

It is not a weakly prime, because it can be changed into another prime (15030049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7515009 + 7515010.

It is an arithmetic number, because the mean of its divisors is an integer number (7515010).

Almost surely, 215030019 is an apocalyptic number.

15030019 is a deficient number, since it is larger than the sum of its proper divisors (1).

15030019 is an equidigital number, since it uses as much as digits as its factorization.

15030019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 15030019 is about 3876.8568454355. The cubic root of 15030019 is about 246.7856160738.

The spelling of 15030019 in words is "fifteen million, thirty thousand, nineteen".