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768827886 = 23128137981
BaseRepresentation
bin101101110100110…
…110000111101110
31222120200111120220
4231310312013232
53033304443021
6204142352210
725023633501
oct5564660756
91876614526
10768827886
11364a8a852
1219558b666
13c338a558
1474173138
154776acc6
hex2dd361ee

768827886 has 8 divisors (see below), whose sum is σ = 1537655784. Its totient is φ = 256275960.

The previous prime is 768827861. The next prime is 768827887. The reversal of 768827886 is 688728867.

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

768827886 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768827887) 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, 64068985 + ... + 64068996.

It is an arithmetic number, because the mean of its divisors is an integer number (192206973).

Almost surely, 2768827886 is an apocalyptic number.

768827886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

768827886 is a wasteful number, since it uses less digits than its factorization.

768827886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128137986.

The product of its digits is 14450688, while the sum is 60.

The square root of 768827886 is about 27727.7457792732. The cubic root of 768827886 is about 916.1003359069.

The spelling of 768827886 in words is "seven hundred sixty-eight million, eight hundred twenty-seven thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 128137981 256275962 384413943 768827886