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834808 = 231323349
BaseRepresentation
bin11001011110011111000
31120102010211
43023303320
5203203213
625520504
710044562
oct3136370
91512124
10834808
11520227
12343134
13232c90
1417a332
1511753d
hexcbcf8

834808 has 32 divisors (see below), whose sum is σ = 1764000. Its totient is φ = 367488.

The previous prime is 834797. The next prime is 834809. The reversal of 834808 is 808438.

834808 is nontrivially palindromic in base 3.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 834808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834809) by changing a digit.

834808 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2218 + ... + 2566.

It is an arithmetic number, because the mean of its divisors is an integer number (55125).

2834808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 834808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882000).

834808 is an abundant number, since it is smaller than the sum of its proper divisors (929192).

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

834808 is a wasteful number, since it uses less digits than its factorization.

834808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 834808 is about 913.6782803591. The cubic root of 834808 is about 94.1590787562.

The spelling of 834808 in words is "eight hundred thirty-four thousand, eight hundred eight".

Divisors: 1 2 4 8 13 23 26 46 52 92 104 184 299 349 598 698 1196 1396 2392 2792 4537 8027 9074 16054 18148 32108 36296 64216 104351 208702 417404 834808