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11020030213 = 61180656233
BaseRepresentation
bin10100100001101100…
…00101000100000101
31001110000010112112011
422100312011010011
5140032111431323
65021301254221
7540041465653
oct122066050405
931400115464
1011020030213
114745579895
122176704371
13106811b74a
14767805dd3
154476e920d
hex290d85105

11020030213 has 4 divisors (see below), whose sum is σ = 11200686508. Its totient is φ = 10839373920.

The previous prime is 11020030201. The next prime is 11020030237. The reversal of 11020030213 is 31203002011.

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 494706564 + 10525323649 = 22242^2 + 102593^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020030213 - 217 = 11019899141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020030193 and 11020030202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020030243) 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, 90328056 + ... + 90328177.

It is an arithmetic number, because the mean of its divisors is an integer number (2800171627).

Almost surely, 211020030213 is an apocalyptic number.

It is an amenable number.

11020030213 is a deficient number, since it is larger than the sum of its proper divisors (180656295).

11020030213 is an equidigital number, since it uses as much as digits as its factorization.

11020030213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180656294.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 11020030213 its reverse (31203002011), we get a palindrome (42223032224).

The spelling of 11020030213 in words is "eleven billion, twenty million, thirty thousand, two hundred thirteen".

Divisors: 1 61 180656233 11020030213