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768672015 = 3551244801
BaseRepresentation
bin101101110100010…
…000000100001111
31222120101120202220
4231310100010033
53033240001030
6204135150423
725022414166
oct5564200417
91876346686
10768672015
11364993731
12195515413
13c3334617
14741323dd
1547739a10
hex2dd1010f

768672015 has 8 divisors (see below), whose sum is σ = 1229875248. Its totient is φ = 409958400.

The previous prime is 768672011. The next prime is 768672049. The reversal of 768672015 is 510276867.

768672015 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 768672015 - 22 = 768672011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768672011) 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, 25622386 + ... + 25622415.

It is an arithmetic number, because the mean of its divisors is an integer number (153734406).

Almost surely, 2768672015 is an apocalyptic number.

768672015 is a deficient number, since it is larger than the sum of its proper divisors (461203233).

768672015 is a wasteful number, since it uses less digits than its factorization.

768672015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51244809.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 768672015 is about 27724.9348962265. The cubic root of 768672015 is about 916.0384221249.

The spelling of 768672015 in words is "seven hundred sixty-eight million, six hundred seventy-two thousand, fifteen".

Divisors: 1 3 5 15 51244801 153734403 256224005 768672015