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320313030031 = 1767281223029
BaseRepresentation
bin1001010100101000010…
…01001111010110001111
31010121210011110212110201
410222110021033112033
520222000113430111
6403052203514331
732066440555261
oct4522411172617
91117704425421
10320313030031
1111393139a425
12520b42289a7
13242893170c7
1411708c2db31
1584eab5e6c1
hex4a9424f58f

320313030031 has 8 divisors (see below), whose sum is σ = 344216988720. Its totient is φ = 296971517568.

The previous prime is 320313029957. The next prime is 320313030041. The reversal of 320313030031 is 130030313023.

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 320313030031 - 213 = 320313021839 is a prime.

It is a super-2 number, since 2×3203130300312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320313029990 and 320313030008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320313030041) 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, 140610376 + ... + 140612653.

It is an arithmetic number, because the mean of its divisors is an integer number (43027123590).

Almost surely, 2320313030031 is an apocalyptic number.

320313030031 is a deficient number, since it is larger than the sum of its proper divisors (23903958689).

320313030031 is a wasteful number, since it uses less digits than its factorization.

320313030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281223113.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 320313030031 its reverse (130030313023), we get a palindrome (450343343054).

The spelling of 320313030031 in words is "three hundred twenty billion, three hundred thirteen million, thirty thousand, thirty-one".

Divisors: 1 17 67 1139 281223029 4780791493 18841942943 320313030031