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331430023 = 2323836047
BaseRepresentation
bin10011110000010…
…011100010000111
3212002122101112001
4103300103202013
51134321230043
652515410131
711133052201
oct2360234207
9762571461
10331430023
111600a1311
1292bb3947
1353883952
1432035771
151e16b74d
hex13c13887

331430023 has 8 divisors (see below), whose sum is σ = 346042368. Its totient is φ = 316834584.

The previous prime is 331429997. The next prime is 331430093. The reversal of 331430023 is 320034133.

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 331430023 - 25 = 331429991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331430093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51786 + ... + 57832.

It is an arithmetic number, because the mean of its divisors is an integer number (43255296).

Almost surely, 2331430023 is an apocalyptic number.

331430023 is a deficient number, since it is larger than the sum of its proper divisors (14612345).

331430023 is a wasteful number, since it uses less digits than its factorization.

331430023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8453.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 331430023 is about 18205.2196636020. The cubic root of 331430023 is about 692.0390729104.

Adding to 331430023 its reverse (320034133), we get a palindrome (651464156).

The spelling of 331430023 in words is "three hundred thirty-one million, four hundred thirty thousand, twenty-three".

Divisors: 1 23 2383 6047 54809 139081 14410001 331430023