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320330320031 = 8917320804723
BaseRepresentation
bin1001010100101010010…
…11001100100010011111
31010121211101000021220002
410222111023030202133
520222014030220111
6403054022244515
732100040536401
oct4522513144237
91117741007802
10320330320031
11113940129687
12520b9b8673b
132428ca8bb87
141170b250b71
1584ec42763b
hex4a952cc89f

320330320031 has 8 divisors (see below), whose sum is σ = 325801977840. Its totient is φ = 314900272192.

The previous prime is 320330320007. The next prime is 320330320033. The reversal of 320330320031 is 130023033023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-320330320031 is a prime.

It is a super-2 number, since 2×3203303200312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320330319985 and 320330320012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320330320033) 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, 10386965 + ... + 10417758.

It is an arithmetic number, because the mean of its divisors is an integer number (40725247230).

Almost surely, 2320330320031 is an apocalyptic number.

320330320031 is a deficient number, since it is larger than the sum of its proper divisors (5471657809).

320330320031 is a wasteful number, since it uses less digits than its factorization.

320330320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20804985.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 320330320031 its reverse (130023033023), we get a palindrome (450353353054).

The spelling of 320330320031 in words is "three hundred twenty billion, three hundred thirty million, three hundred twenty thousand, thirty-one".

Divisors: 1 89 173 15397 20804723 1851620347 3599217079 320330320031