Search a number
-
+
5106108181 is a prime number
BaseRepresentation
bin1001100000101100…
…10000011100010101
3111011212001011121211
410300112100130111
540424130430211
62202401341421
7240351126526
oct46026203425
914155034554
105106108181
1121902a0719
12ba6037871
13634b306b5
1436620284d
151ed415e21
hex130590715

5106108181 has 2 divisors, whose sum is σ = 5106108182. Its totient is φ = 5106108180.

The previous prime is 5106108179. The next prime is 5106108193. The reversal of 5106108181 is 1818016015.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3583937956 + 1522170225 = 59866^2 + 39015^2 .

It is a cyclic number.

It is not a de Polignac number, because 5106108181 - 21 = 5106108179 is a prime.

It is a super-2 number, since 2×51061081812 = 52144681512150257522, which contains 22 as substring.

Together with 5106108179, 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 (5106108131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553054090 + 2553054091.

It is an arithmetic number, because the mean of its divisors is an integer number (2553054091).

Almost surely, 25106108181 is an apocalyptic number.

It is an amenable number.

5106108181 is a deficient number, since it is larger than the sum of its proper divisors (1).

5106108181 is an equidigital number, since it uses as much as digits as its factorization.

5106108181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 31.

The square root of 5106108181 is about 71457.0373091412. The cubic root of 5106108181 is about 1721.9875371350.

The spelling of 5106108181 in words is "five billion, one hundred six million, one hundred eight thousand, one hundred eighty-one".