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14378823805 = 5171571077469
BaseRepresentation
bin11010110010000101…
…10111000001111101
31101010002021221010211
431121002313001331
5213421434330210
610334444032421
71016214662053
oct153102670175
941102257124
1014378823805
116109520165
122953532711
131481c47888
149a59281d3
1559251238a
hex3590b707d

14378823805 has 16 divisors (see below), whose sum is σ = 18385948080. Its totient is φ = 10757440512.

The previous prime is 14378823751. The next prime is 14378823827. The reversal of 14378823805 is 50832887341.

It can be written as a sum of positive squares in 8 ways, for example, as 1765512324 + 12613311481 = 42018^2 + 112309^2 .

It is a cyclic number.

It is not a de Polignac number, because 14378823805 - 27 = 14378823677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525390 + ... + 552079.

It is an arithmetic number, because the mean of its divisors is an integer number (1149121755).

Almost surely, 214378823805 is an apocalyptic number.

It is an amenable number.

14378823805 is a deficient number, since it is larger than the sum of its proper divisors (4007124275).

14378823805 is a wasteful number, since it uses less digits than its factorization.

14378823805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077648.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 14378823805 in words is "fourteen billion, three hundred seventy-eight million, eight hundred twenty-three thousand, eight hundred five".

Divisors: 1 5 17 85 157 785 2669 13345 1077469 5387345 18316973 91584865 169162633 845813165 2875764761 14378823805