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68119645 = 5111976287
BaseRepresentation
bin1000000111101…
…10110001011101
311202011211120211
410003312301131
5114414312040
610432012421
71455002356
oct403666135
9152154524
1068119645
11354a7330
121a991111
13111609a9
149092d2d
155ea88ea
hex40f6c5d

68119645 has 16 divisors (see below), whose sum is σ = 89641728. Its totient is φ = 49282240.

The previous prime is 68119613. The next prime is 68119651. The reversal of 68119645 is 54691186.

It is not a de Polignac number, because 68119645 - 25 = 68119613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68119598 and 68119607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7692 + ... + 13978.

It is an arithmetic number, because the mean of its divisors is an integer number (5602608).

Almost surely, 268119645 is an apocalyptic number.

It is an amenable number.

68119645 is a deficient number, since it is larger than the sum of its proper divisors (21522083).

68119645 is a wasteful number, since it uses less digits than its factorization.

68119645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500.

The product of its digits is 51840, while the sum is 40.

The square root of 68119645 is about 8253.4626066882. The cubic root of 68119645 is about 408.4047570004.

The spelling of 68119645 in words is "sixty-eight million, one hundred nineteen thousand, six hundred forty-five".

Divisors: 1 5 11 55 197 985 2167 6287 10835 31435 69157 345785 1238539 6192695 13623929 68119645