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68024428 = 2233475081
BaseRepresentation
bin1000000110111…
…11100001101100
311201222222222021
410003133201230
5114403240203
610425555524
71454124643
oct403374154
9151888867
1068024428
113544183a
121a945ba4
1311129554
14906a35a
155e8a5bd
hex40df86c

68024428 has 12 divisors (see below), whose sum is σ = 119101752. Its totient is φ = 33995360.

The previous prime is 68024399. The next prime is 68024431. The reversal of 68024428 is 82442086.

It is a junction number, because it is equal to n+sod(n) for n = 68024393 and 68024402.

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, 10848 + ... + 15928.

It is an arithmetic number, because the mean of its divisors is an integer number (9925146).

Almost surely, 268024428 is an apocalyptic number.

It is an amenable number.

68024428 is a deficient number, since it is larger than the sum of its proper divisors (51077324).

68024428 is a wasteful number, since it uses less digits than its factorization.

68024428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8432 (or 8430 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 68024428 is about 8247.6922832996. The cubic root of 68024428 is about 408.2143801593.

The spelling of 68024428 in words is "sixty-eight million, twenty-four thousand, four hundred twenty-eight".

Divisors: 1 2 4 3347 5081 6694 10162 13388 20324 17006107 34012214 68024428