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13213030051 = 131016386927
BaseRepresentation
bin11000100111000111…
…01101011010100011
31021002211122110202101
430103203231122203
5204030013430201
610023041031231
7645300621334
oct142343553243
937084573671
1013213030051
115670458051
122689025517
13132756baa0
148d4b8028b
15524ed1d01
hex3138ed6a3

13213030051 has 4 divisors (see below), whose sum is σ = 14229416992. Its totient is φ = 12196643112.

The previous prime is 13213030043. The next prime is 13213030057. The reversal of 13213030051 is 15003031231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13213030051 - 23 = 13213030043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213030057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508193451 + ... + 508193476.

It is an arithmetic number, because the mean of its divisors is an integer number (3557354248).

Almost surely, 213213030051 is an apocalyptic number.

13213030051 is a deficient number, since it is larger than the sum of its proper divisors (1016386941).

13213030051 is a wasteful number, since it uses less digits than its factorization.

13213030051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016386940.

The product of its (nonzero) digits is 270, while the sum is 19.

Adding to 13213030051 its reverse (15003031231), we get a palindrome (28216061282).

The spelling of 13213030051 in words is "thirteen billion, two hundred thirteen million, thirty thousand, fifty-one".

Divisors: 1 13 1016386927 13213030051