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331031030313 = 3553119950041
BaseRepresentation
bin1001101000100101111…
…11001010101000101001
31011122110010021200211010
410310102333022220221
520410422420432223
6412023515454133
732626154221434
oct4642277125051
91148403250733
10331031030313
111184314286a5
12541a5757349
13252a69a6ac9
141204449481b
158926a98393
hex4d12fcaa29

331031030313 has 8 divisors (see below), whose sum is σ = 441454529376. Its totient is φ = 220647442400.

The previous prime is 331031030303. The next prime is 331031030357. The reversal of 331031030313 is 313030130133.

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 331031030313 - 26 = 331031030249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331031030313.

It is not an unprimeable number, because it can be changed into a prime (331031030303) 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 7 ways as a sum of consecutive naturals, for example, 9958428 + ... + 9991613.

It is an arithmetic number, because the mean of its divisors is an integer number (55181816172).

Almost surely, 2331031030313 is an apocalyptic number.

It is an amenable number.

331031030313 is a deficient number, since it is larger than the sum of its proper divisors (110423499063).

331031030313 is a wasteful number, since it uses less digits than its factorization.

331031030313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19955575.

The product of its (nonzero) digits is 729, while the sum is 21.

Adding to 331031030313 its reverse (313030130133), we get a palindrome (644061160446).

The spelling of 331031030313 in words is "three hundred thirty-one billion, thirty-one million, thirty thousand, three hundred thirteen".

Divisors: 1 3 5531 16593 19950041 59850123 110343676771 331031030313