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68842196 = 2231217909
BaseRepresentation
bin1000001101001…
…11001011010100
311210112112201222
410012213023110
5120110422241
610455305512
71464102053
oct406471324
9153475658
1068842196
1135950185
121b07b298
1311354837
14920039a
15609ca4b
hex41a72d4

68842196 has 18 divisors (see below), whose sum is σ = 124492410. Its totient is φ = 33308880.

The previous prime is 68842181. The next prime is 68842217. The reversal of 68842196 is 69124886.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 57214096 + 11628100 = 7564^2 + 3410^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5111 + ... + 12798.

It is an arithmetic number, because the mean of its divisors is an integer number (6916245).

Almost surely, 268842196 is an apocalyptic number.

It is an amenable number.

68842196 is a deficient number, since it is larger than the sum of its proper divisors (55650214).

68842196 is a wasteful number, since it uses less digits than its factorization.

68842196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17975 (or 17942 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 68842196 is about 8297.1197412114. The cubic root of 68842196 is about 409.8436762764.

The spelling of 68842196 in words is "sixty-eight million, eight hundred forty-two thousand, one hundred ninety-six".

Divisors: 1 2 4 31 62 124 961 1922 3844 17909 35818 71636 555179 1110358 2220716 17210549 34421098 68842196