Search a number
-
+
2145314807 is a prime number
BaseRepresentation
bin111111111011110…
…1110011111110111
312112111210021122222
41333313232133313
513343200033212
6552513312555
7104106606056
oct17767563767
95474707588
102145314807
11a00a79849
124ba56575b
132825c585c
14164cc439d
15c8518c72
hex7fdee7f7

2145314807 has 2 divisors, whose sum is σ = 2145314808. Its totient is φ = 2145314806.

The previous prime is 2145314707. The next prime is 2145314851. The reversal of 2145314807 is 7084135412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2145314807 is a prime.

It is a super-2 number, since 2×21453148072 = 9204751242266894498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145314887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072657403 + 1072657404.

It is an arithmetic number, because the mean of its divisors is an integer number (1072657404).

Almost surely, 22145314807 is an apocalyptic number.

2145314807 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145314807 is an equidigital number, since it uses as much as digits as its factorization.

2145314807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 2145314807 is about 46317.5431882996. The cubic root of 2145314807 is about 1289.7246787388.

The spelling of 2145314807 in words is "two billion, one hundred forty-five million, three hundred fourteen thousand, eight hundred seven".