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2000521213 = 15649127837
BaseRepresentation
bin111011100111101…
…1000011111111101
312011102100000012021
41313033120133331
513044113134323
6530302040141
7100401102235
oct16717303775
95142300167
102000521213
11937273219
12479b79051
1325b5ca682
1414d992cc5
15ba96705d
hex773d87fd

2000521213 has 4 divisors (see below), whose sum is σ = 2000664700. Its totient is φ = 2000377728.

The previous prime is 2000521183. The next prime is 2000521253. The reversal of 2000521213 is 3121250002.

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 455480964 + 1545040249 = 21342^2 + 39307^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000521213 - 221 = 1998424061 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 (2000521253) 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, 48270 + ... + 79567.

It is an arithmetic number, because the mean of its divisors is an integer number (500166175).

Almost surely, 22000521213 is an apocalyptic number.

It is an amenable number.

2000521213 is a deficient number, since it is larger than the sum of its proper divisors (143487).

2000521213 is a wasteful number, since it uses less digits than its factorization.

2000521213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143486.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2000521213 is about 44727.1865088785. The cubic root of 2000521213 is about 1260.0304882603.

Adding to 2000521213 its reverse (3121250002), we get a palindrome (5121771215).

The spelling of 2000521213 in words is "two billion, five hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 15649 127837 2000521213