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768906829 = 769999871
BaseRepresentation
bin101101110101001…
…001011001001101
31222120211111212201
4231311021121031
53033320004304
6204144201501
725024412605
oct5565113115
91876744781
10768906829
11365034099
12195609291
13c33b7472
1474193c05
15477843a4
hex2dd4964d

768906829 has 4 divisors (see below), whose sum is σ = 769014400. Its totient is φ = 768799260.

The previous prime is 768906823. The next prime is 768906863. The reversal of 768906829 is 928609867.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 768906829 - 25 = 768906797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 768906829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768906823) 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, 42237 + ... + 57634.

It is an arithmetic number, because the mean of its divisors is an integer number (192253600).

Almost surely, 2768906829 is an apocalyptic number.

It is an amenable number.

768906829 is a deficient number, since it is larger than the sum of its proper divisors (107571).

768906829 is an equidigital number, since it uses as much as digits as its factorization.

768906829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107570.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The square root of 768906829 is about 27729.1692807412. The cubic root of 768906829 is about 916.1316897964.

The spelling of 768906829 in words is "seven hundred sixty-eight million, nine hundred six thousand, eight hundred twenty-nine".

Divisors: 1 7699 99871 768906829