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68065652 = 2217016413
BaseRepresentation
bin1000000111010…
…01100101110100
311202002002112002
410003221211310
5114411100102
610430514432
71454356064
oct403514564
9152062462
1068065652
113546a806
121a965a18
1311142245
14907b3a4
155e97902
hex40e9974

68065652 has 6 divisors (see below), whose sum is σ = 119114898. Its totient is φ = 34032824.

The previous prime is 68065649. The next prime is 68065661. The reversal of 68065652 is 25656086.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 57851236 + 10214416 = 7606^2 + 3196^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8508203 + ... + 8508210.

It is an arithmetic number, because the mean of its divisors is an integer number (19852483).

Almost surely, 268065652 is an apocalyptic number.

It is an amenable number.

68065652 is a deficient number, since it is larger than the sum of its proper divisors (51049246).

68065652 is a wasteful number, since it uses less digits than its factorization.

68065652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17016417 (or 17016415 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 68065652 is about 8250.1910280914. The cubic root of 68065652 is about 408.2968252056.

The spelling of 68065652 in words is "sixty-eight million, sixty-five thousand, six hundred fifty-two".

Divisors: 1 2 4 17016413 34032826 68065652