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68285656 = 2359199727
BaseRepresentation
bin1000001000111…
…11010011011000
311202111021022101
410010133103120
5114440120111
610435333144
71456263355
oct404372330
9152437271
1068285656
113560002a
121aa511b4
13111bb41a
1490d762c
155edcbc1
hex411f4d8

68285656 has 32 divisors (see below), whose sum is σ = 131040000. Its totient is φ = 33349536.

The previous prime is 68285641. The next prime is 68285669. The reversal of 68285656 is 65658286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93565 + ... + 94291.

It is an arithmetic number, because the mean of its divisors is an integer number (4095000).

Almost surely, 268285656 is an apocalyptic number.

It is an amenable number.

68285656 is a deficient number, since it is larger than the sum of its proper divisors (62754344).

68285656 is a wasteful number, since it uses less digits than its factorization.

68285656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 987 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The square root of 68285656 is about 8263.5135384411. The cubic root of 68285656 is about 408.7362554958.

The spelling of 68285656 in words is "sixty-eight million, two hundred eighty-five thousand, six hundred fifty-six".

Divisors: 1 2 4 8 59 118 199 236 398 472 727 796 1454 1592 2908 5816 11741 23482 42893 46964 85786 93928 144673 171572 289346 343144 578692 1157384 8535707 17071414 34142828 68285656