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201012120013 = 1217165170189
BaseRepresentation
bin1011101100110101000…
…0011000100111001101
3201012211212202201010211
42323031100120213031
511243133100320023
6232202123202421
720344160554135
oct2731520304715
9635755681124
10201012120013
1178281112a21
1232b5a676411
1315c55c10b63
149a2c6a5ac5
15536724ba0d
hex2ecd4189cd

201012120013 has 4 divisors (see below), whose sum is σ = 201177291420. Its totient is φ = 200846948608.

The previous prime is 201012120011. The next prime is 201012120017. The reversal of 201012120013 is 310021210102.

201012120013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 150045445449 + 50966674564 = 387357^2 + 225758^2 .

It is a cyclic number.

It is not a de Polignac number, because 201012120013 - 21 = 201012120011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201012119975 and 201012120002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012120011) 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, 82583878 + ... + 82586311.

It is an arithmetic number, because the mean of its divisors is an integer number (50294322855).

Almost surely, 2201012120013 is an apocalyptic number.

It is an amenable number.

201012120013 is a deficient number, since it is larger than the sum of its proper divisors (165171407).

201012120013 is a wasteful number, since it uses less digits than its factorization.

201012120013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165171406.

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

Adding to 201012120013 its reverse (310021210102), we get a palindrome (511033330115).

The spelling of 201012120013 in words is "two hundred one billion, twelve million, one hundred twenty thousand, thirteen".

Divisors: 1 1217 165170189 201012120013