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2663880931 is a prime number
BaseRepresentation
bin1001111011000111…
…1001100011100011
320212122120011122201
42132301321203203
520423423142211
61120200114031
7123004420465
oct23661714343
96778504581
102663880931
111147767198
12624165917
13335b7b50a
141b3b10135
15108ced0c1
hex9ec798e3

2663880931 has 2 divisors, whose sum is σ = 2663880932. Its totient is φ = 2663880930.

The previous prime is 2663880913. The next prime is 2663880941. The reversal of 2663880931 is 1390883662.

Together with previous prime (2663880913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2663880931 - 225 = 2630326499 is a prime.

It is a super-2 number, since 2×26638809312 = 14192523229090853522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2663880911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331940465 + 1331940466.

It is an arithmetic number, because the mean of its divisors is an integer number (1331940466).

Almost surely, 22663880931 is an apocalyptic number.

2663880931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663880931 is an equidigital number, since it uses as much as digits as its factorization.

2663880931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 2663880931 is about 51612.7981318587. The cubic root of 2663880931 is about 1386.2395001485.

The spelling of 2663880931 in words is "two billion, six hundred sixty-three million, eight hundred eighty thousand, nine hundred thirty-one".