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13850860829 = 131065450833
BaseRepresentation
bin11001110011001001…
…10101110100011101
31022202021211122002112
430321210311310131
5211331310021304
610210224003405
71000144242311
oct147144656435
938667748075
1013850860829
1159684a4823
122826760565
1313c9751a50
14955773b41
15560ec3b6e
hex339935d1d

13850860829 has 4 divisors (see below), whose sum is σ = 14916311676. Its totient is φ = 12785409984.

The previous prime is 13850860819. The next prime is 13850860871. The reversal of 13850860829 is 92806805831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92806805831 = 591572996709.

It can be written as a sum of positive squares in 2 ways, for example, as 4198780804 + 9652080025 = 64798^2 + 98245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13850860829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13850860819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532725404 + ... + 532725429.

It is an arithmetic number, because the mean of its divisors is an integer number (3729077919).

Almost surely, 213850860829 is an apocalyptic number.

It is an amenable number.

13850860829 is a deficient number, since it is larger than the sum of its proper divisors (1065450847).

13850860829 is a wasteful number, since it uses less digits than its factorization.

13850860829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065450846.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 13850860829 in words is "thirteen billion, eight hundred fifty million, eight hundred sixty thousand, eight hundred twenty-nine".

Divisors: 1 13 1065450833 13850860829