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331023200213 = 525116303883
BaseRepresentation
bin1001101000100101000…
…01010010111111010101
31011122102120112212221102
410310102201102333111
520410413414401323
6412023035555445
732626030530236
oct4642241227725
91148376485842
10331023200213
11118427a6a842
12541a2bbbb85
13252a5194b04
141204341708d
15892604d328
hex4d12852fd5

331023200213 has 4 divisors (see below), whose sum is σ = 331029556608. Its totient is φ = 331016843820.

The previous prime is 331023200203. The next prime is 331023200279. The reversal of 331023200213 is 312002320133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331023200213 - 212 = 331023196117 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 (331023200203) 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, 3099431 + ... + 3204452.

It is an arithmetic number, because the mean of its divisors is an integer number (82757389152).

Almost surely, 2331023200213 is an apocalyptic number.

It is an amenable number.

331023200213 is a deficient number, since it is larger than the sum of its proper divisors (6356395).

331023200213 is an equidigital number, since it uses as much as digits as its factorization.

331023200213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356394.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 331023200213 its reverse (312002320133), we get a palindrome (643025520346).

The spelling of 331023200213 in words is "three hundred thirty-one billion, twenty-three million, two hundred thousand, two hundred thirteen".

Divisors: 1 52511 6303883 331023200213