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68024236 = 2272429437
BaseRepresentation
bin1000000110111…
…11011110101100
311201222222201011
410003133132230
5114403233421
610425555004
71454124250
oct403373654
9151888634
1068024236
1135441685
121a945a64
1311129437
14906a260
155e8a4e1
hex40df7ac

68024236 has 12 divisors (see below), whose sum is σ = 136048528. Its totient is φ = 29153232.

The previous prime is 68024233. The next prime is 68024267. The reversal of 68024236 is 63242086.

68024236 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 68024198 and 68024207.

It is not an unprimeable number, because it can be changed into a prime (68024233) 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, 1214691 + ... + 1214746.

Almost surely, 268024236 is an apocalyptic number.

It is an amenable number.

68024236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68024236 is a wasteful number, since it uses less digits than its factorization.

68024236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429448 (or 2429446 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 68024236 is about 8247.6806436719. The cubic root of 68024236 is about 408.2139960951.

The spelling of 68024236 in words is "sixty-eight million, twenty-four thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 2429437 4858874 9717748 17006059 34012118 68024236