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68828852 = 22171012189
BaseRepresentation
bin1000001101000…
…11111010110100
311210111212102202
410012203322310
5120110010402
610455124032
71464015131
oct406437264
9153455382
1068828852
1135941154
121b073618
131134b741
1491d9588
156098b02
hex41a3eb4

68828852 has 12 divisors (see below), whose sum is σ = 127535940. Its totient is φ = 32390016.

The previous prime is 68828839. The next prime is 68828863. The reversal of 68828852 is 25882886.

It can be written as a sum of positive squares in 2 ways, for example, as 52215076 + 16613776 = 7226^2 + 4076^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68828797 and 68828806.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 506027 + ... + 506162.

It is an arithmetic number, because the mean of its divisors is an integer number (10627995).

Almost surely, 268828852 is an apocalyptic number.

It is an amenable number.

68828852 is a deficient number, since it is larger than the sum of its proper divisors (58707088).

68828852 is a wasteful number, since it uses less digits than its factorization.

68828852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012210 (or 1012208 counting only the distinct ones).

The product of its digits is 491520, while the sum is 47.

The square root of 68828852 is about 8296.3155677686. The cubic root of 68828852 is about 409.8171939359.

The spelling of 68828852 in words is "sixty-eight million, eight hundred twenty-eight thousand, eight hundred fifty-two".

Divisors: 1 2 4 17 34 68 1012189 2024378 4048756 17207213 34414426 68828852