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828020828 = 22207005207
BaseRepresentation
bin110001010110101…
…001100001011100
32010201001211001002
4301112221201130
53143433131303
6214055205432
726343026615
oct6126514134
92121054032
10828020828
1139543a338
121b1376878
1310271406b
147bd80c0c
154ca5e788
hex315a985c

828020828 has 6 divisors (see below), whose sum is σ = 1449036456. Its totient is φ = 414010412.

The previous prime is 828020827. The next prime is 828020833.

828020828 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 828020791 and 828020800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828020821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103502600 + ... + 103502607.

It is an arithmetic number, because the mean of its divisors is an integer number (241506076).

Almost surely, 2828020828 is an apocalyptic number.

It is an amenable number.

828020828 is a deficient number, since it is larger than the sum of its proper divisors (621015628).

828020828 is a wasteful number, since it uses less digits than its factorization.

828020828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207005211 (or 207005209 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 38.

The square root of 828020828 is about 28775.3510491184. The cubic root of 828020828 is about 939.0320608236.

The spelling of 828020828 in words is "eight hundred twenty-eight million, twenty thousand, eight hundred twenty-eight".

Divisors: 1 2 4 207005207 414010414 828020828