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768964091 = 7379289847
BaseRepresentation
bin101101110101010…
…111010111111011
31222120221102102112
4231311113113323
53033323322331
6204145322535
725025041550
oct5565272773
91876842375
10768964091
11365073115
1219563644b
13c340754c
14741aaa27
154779632b
hex2dd575fb

768964091 has 8 divisors (see below), whose sum is σ = 881137920. Its totient is φ = 657370728.

The previous prime is 768964057. The next prime is 768964093. The reversal of 768964091 is 190469867.

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

It is not a de Polignac number, because 768964091 - 226 = 701855227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768964093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142271 + ... + 147576.

It is an arithmetic number, because the mean of its divisors is an integer number (110142240).

Almost surely, 2768964091 is an apocalyptic number.

768964091 is a deficient number, since it is larger than the sum of its proper divisors (112173829).

768964091 is a wasteful number, since it uses less digits than its factorization.

768964091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290233.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 768964091 is about 27730.2017843362. The cubic root of 768964091 is about 916.1544312732.

The spelling of 768964091 in words is "seven hundred sixty-eight million, nine hundred sixty-four thousand, ninety-one".

Divisors: 1 7 379 2653 289847 2028929 109852013 768964091