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204111013 = 7126910687
BaseRepresentation
bin11000010101001…
…11110010100101
3112020001220200011
430022213302211
5404223023023
632130450221
75025625561
oct1412476245
9466056604
10204111013
11a5240697
1258433971
1333396562
141d1726a1
1512dbc50d
hexc2a7ca5

204111013 has 8 divisors (see below), whose sum is σ = 207774720. Its totient is φ = 200469360.

The previous prime is 204110999. The next prime is 204111071. The reversal of 204111013 is 310111402.

204111013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-204111013 is a prime.

It is a super-2 number, since 2×2041110132 = 83322611255772338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204110984 and 204111002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204111073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13756 + ... + 24442.

It is an arithmetic number, because the mean of its divisors is an integer number (25971840).

Almost surely, 2204111013 is an apocalyptic number.

It is an amenable number.

204111013 is a deficient number, since it is larger than the sum of its proper divisors (3663707).

204111013 is a wasteful number, since it uses less digits than its factorization.

204111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11027.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 204111013 is about 14286.7425608499. The cubic root of 204111013 is about 588.7832945922.

Adding to 204111013 its reverse (310111402), we get a palindrome (514222415).

The spelling of 204111013 in words is "two hundred four million, one hundred eleven thousand, thirteen".

Divisors: 1 71 269 10687 19099 758777 2874803 204111013