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12838947026 = 2171922787553
BaseRepresentation
bin10111111010100001…
…01100100011010010
31020010202202002022112
423331100230203102
5202243232301101
65521555105322
7633106151303
oct137520544322
936122662275
1012838947026
115499283a24
1225a38a2242
131297c02b99
1489b2047aa
1550223c6bb
hex2fd42c8d2

12838947026 has 32 divisors (see below), whose sum is σ = 21559296960. Its totient is φ = 5698584576.

The previous prime is 12838946983. The next prime is 12838947031. The reversal of 12838947026 is 62074983821.

12838947026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 102866 + ... + 190418.

It is an arithmetic number, because the mean of its divisors is an integer number (673728030).

Almost surely, 212838947026 is an apocalyptic number.

12838947026 is a deficient number, since it is larger than the sum of its proper divisors (8720349934).

12838947026 is a wasteful number, since it uses less digits than its factorization.

12838947026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87818.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 12838947026 in words is "twelve billion, eight hundred thirty-eight million, nine hundred forty-seven thousand, twenty-six".

Divisors: 1 2 17 19 34 38 227 323 454 646 3859 4313 7718 8626 73321 87553 146642 175106 1488401 1663507 2976802 3327014 19874531 28279619 39749062 56559238 337867027 377616089 675734054 755232178 6419473513 12838947026