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13230779475 = 3522948712491
BaseRepresentation
bin11000101001001110…
…11010110001010011
31021011002001020101110
430110213122301103
5204044034420400
610024513304403
7645604525044
oct142447326123
937132036343
1013230779475
11567a4804a1
122692b65103
13132b1449c4
148d72808cb
1552683ae50
hex3149dac53

13230779475 has 48 divisors (see below), whose sum is σ = 22677477120. Its totient is φ = 6798556800.

The previous prime is 13230779473. The next prime is 13230779477. The reversal of 13230779475 is 57497703231.

13230779475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13230779473) and next prime (13230779477).

It is not a de Polignac number, because 13230779475 - 21 = 13230779473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13230779473) 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 in 47 ways as a sum of consecutive naturals, for example, 1052980 + ... + 1065470.

It is an arithmetic number, because the mean of its divisors is an integer number (472447440).

Almost surely, 213230779475 is an apocalyptic number.

13230779475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13230779475 is a deficient number, since it is larger than the sum of its proper divisors (9446697645).

13230779475 is a wasteful number, since it uses less digits than its factorization.

13230779475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13020 (or 13015 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 48.

The spelling of 13230779475 in words is "thirteen billion, two hundred thirty million, seven hundred seventy-nine thousand, four hundred seventy-five".

Divisors: 1 3 5 15 25 29 75 87 145 435 487 725 1461 2175 2435 7305 12175 12491 14123 36525 37473 42369 62455 70615 187365 211845 312275 353075 362239 936825 1059225 1086717 1811195 5433585 6083117 9055975 18249351 27167925 30415585 91246755 152077925 176410393 456233775 529231179 882051965 2646155895 4410259825 13230779475