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330131023 = 1917375317
BaseRepresentation
bin10011101011010…
…110011001001111
3212000012101121221
4103223112121033
51134003143043
652431504211
711116032055
oct2353263117
9760171557
10330131023
1115a394362
1292688067
135351a601
1431bb81d5
151deb18ed
hex13ad664f

330131023 has 4 divisors (see below), whose sum is σ = 347506360. Its totient is φ = 312755688.

The previous prime is 330130987. The next prime is 330131033. The reversal of 330131023 is 320131033.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 330131023 - 213 = 330122831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 330130988 and 330131006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330131033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8687640 + ... + 8687677.

It is an arithmetic number, because the mean of its divisors is an integer number (86876590).

Almost surely, 2330131023 is an apocalyptic number.

330131023 is a deficient number, since it is larger than the sum of its proper divisors (17375337).

330131023 is a wasteful number, since it uses less digits than its factorization.

330131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17375336.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 330131023 is about 18169.5080560812. The cubic root of 330131023 is about 691.1337679081.

Adding to 330131023 its reverse (320131033), we get a palindrome (650262056).

The spelling of 330131023 in words is "three hundred thirty million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 19 17375317 330131023