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330040031 = 962334297
BaseRepresentation
bin10011101011000…
…000001011011111
3212000000202210212
4103223000023133
51133442240111
652425523035
711115202556
oct2353001337
9760022725
10330040031
1115a331a62
129264347b
13534b8079
1431b92d9d
151de9498b
hex13ac02df

330040031 has 4 divisors (see below), whose sum is σ = 330083952. Its totient is φ = 329996112.

The previous prime is 330040027. The next prime is 330040049. The reversal of 330040031 is 130040033.

It is a happy number.

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 330040031 - 22 = 330040027 is a prime.

It is a super-2 number, since 2×3300400312 = 217852844124961922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 330039988 and 330040015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330000031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7526 + ... + 26771.

It is an arithmetic number, because the mean of its divisors is an integer number (82520988).

Almost surely, 2330040031 is an apocalyptic number.

330040031 is a deficient number, since it is larger than the sum of its proper divisors (43921).

330040031 is an equidigital number, since it uses as much as digits as its factorization.

330040031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43920.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 330040031 is about 18167.0039081848. The cubic root of 330040031 is about 691.0702644120.

Adding to 330040031 its reverse (130040033), we get a palindrome (460080064).

The spelling of 330040031 in words is "three hundred thirty million, forty thousand, thirty-one".

Divisors: 1 9623 34297 330040031