Search a number
-
+
2115325031 is a prime number
BaseRepresentation
bin111111000010101…
…0100110001100111
312110102100122102112
41332011110301213
513313010400111
6545522431235
7103263652241
oct17605246147
95412318375
102115325031
11996056006
124b050251b
13279325421
14160d19091
15c5a92e8b
hex7e154c67

2115325031 has 2 divisors, whose sum is σ = 2115325032. Its totient is φ = 2115325030.

The previous prime is 2115324997. The next prime is 2115325049. The reversal of 2115325031 is 1305235112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2115325031 is a prime.

It is a super-2 number, since 2×21153250312 = 8949199973550301922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2115324988 and 2115325006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2115325061) 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, 1057662515 + 1057662516.

It is an arithmetic number, because the mean of its divisors is an integer number (1057662516).

Almost surely, 22115325031 is an apocalyptic number.

2115325031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115325031 is an equidigital number, since it uses as much as digits as its factorization.

2115325031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2115325031 is about 45992.6627952764. The cubic root of 2115325031 is about 1283.6866839599.

The spelling of 2115325031 in words is "two billion, one hundred fifteen million, three hundred twenty-five thousand, thirty-one".