Search a number
-
+
51305842151 is a prime number
BaseRepresentation
bin101111110010000100…
…010000010111100111
311220102120222211021222
4233302010100113213
51320033243422101
635323010130555
73464256314504
oct576204202747
9156376884258
1051305842151
111a8388a0643
129b3a280a5b
134ab8471ba5
1426a9d324ab
15150433b01b
hexbf21105e7

51305842151 has 2 divisors, whose sum is σ = 51305842152. Its totient is φ = 51305842150.

The previous prime is 51305842129. The next prime is 51305842153. The reversal of 51305842151 is 15124850315.

51305842151 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 is a cyclic number.

It is not a de Polignac number, because 51305842151 - 234 = 34125972967 is a prime.

Together with 51305842153, 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 (51305842153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25652921075 + 25652921076.

It is an arithmetic number, because the mean of its divisors is an integer number (25652921076).

Almost surely, 251305842151 is an apocalyptic number.

51305842151 is a deficient number, since it is larger than the sum of its proper divisors (1).

51305842151 is an equidigital number, since it uses as much as digits as its factorization.

51305842151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 35.

The spelling of 51305842151 in words is "fifty-one billion, three hundred five million, eight hundred forty-two thousand, one hundred fifty-one".