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2648808979 is a prime number
BaseRepresentation
bin1001110111100001…
…1001111000010011
320211121012102211021
42131320121320103
520411043341404
61114501100311
7122432335105
oct23570317023
96747172737
102648808979
11113a202433
1261b0b7697
13332a021bb
141b1b09575
15107822454
hex9de19e13

2648808979 has 2 divisors, whose sum is σ = 2648808980. Its totient is φ = 2648808978.

The previous prime is 2648808923. The next prime is 2648809001. The reversal of 2648808979 is 9798088462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2648808979 - 215 = 2648776211 is a prime.

It is a super-3 number, since 3×26488089793 (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2648802979) 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, 1324404489 + 1324404490.

It is an arithmetic number, because the mean of its divisors is an integer number (1324404490).

Almost surely, 22648808979 is an apocalyptic number.

2648808979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2648808979 is an equidigital number, since it uses as much as digits as its factorization.

2648808979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 61.

The square root of 2648808979 is about 51466.5811862416. The cubic root of 2648808979 is about 1383.6201558964.

The spelling of 2648808979 in words is "two billion, six hundred forty-eight million, eight hundred eight thousand, nine hundred seventy-nine".