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28679409107 is a prime number
BaseRepresentation
bin11010101101011011…
…010000110111010011
32202000201100221020022
4122231123100313103
5432213412042412
621101455134055
72033462645426
oct325533206723
982021327208
1028679409107
11111878625a8
12568481432b
1329208caa7b
141560cc79bd
15b2cc1ca72
hex6ad6d0dd3

28679409107 has 2 divisors, whose sum is σ = 28679409108. Its totient is φ = 28679409106.

The previous prime is 28679409079. The next prime is 28679409133. The reversal of 28679409107 is 70190497682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28679409107 - 210 = 28679408083 is a prime.

It is not a weakly prime, because it can be changed into another prime (28679409007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14339704553 + 14339704554.

It is an arithmetic number, because the mean of its divisors is an integer number (14339704554).

Almost surely, 228679409107 is an apocalyptic number.

28679409107 is a deficient number, since it is larger than the sum of its proper divisors (1).

28679409107 is an equidigital number, since it uses as much as digits as its factorization.

28679409107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 28679409107 in words is "twenty-eight billion, six hundred seventy-nine million, four hundred nine thousand, one hundred seven".