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331203133013 = 899221403577
BaseRepresentation
bin1001101000111010011…
…11101011111001010101
31011122220010010102100012
410310131033223321111
520411301000224023
6412052544330005
732633344115534
oct4643517537125
91148803112305
10331203133013
1111850a596a35
1254233313905
132530354421c
141205d29431b
158936c41978
hex4d1d3ebe55

331203133013 has 8 divisors (see below), whose sum is σ = 334961668440. Its totient is φ = 327445423360.

The previous prime is 331203133007. The next prime is 331203133043. The reversal of 331203133013 is 310331302133.

It can be written as a sum of positive squares in 4 ways, for example, as 28788926929 + 302414206084 = 169673^2 + 549922^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 331203133013 - 222 = 331198938709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331203133013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331203133043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618881 + ... + 1022457.

It is an arithmetic number, because the mean of its divisors is an integer number (41870208555).

Almost surely, 2331203133013 is an apocalyptic number.

It is an amenable number.

331203133013 is a deficient number, since it is larger than the sum of its proper divisors (3758535427).

331203133013 is an equidigital number, since it uses as much as digits as its factorization.

331203133013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412887.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 331203133013 its reverse (310331302133), we get a palindrome (641534435146).

The spelling of 331203133013 in words is "three hundred thirty-one billion, two hundred three million, one hundred thirty-three thousand, thirteen".

Divisors: 1 89 9221 403577 820669 35918353 3721383517 331203133013