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68916196 = 2217229049
BaseRepresentation
bin1000001101110…
…01001111100100
311210200022020201
410012321033210
5120120304241
610501040244
71464530566
oct406711744
9153608221
1068916196
11359a0838
121b0b6084
131137c41b
14921d336
1560b4931
hex41b93e4

68916196 has 6 divisors (see below), whose sum is σ = 120603350. Its totient is φ = 34458096.

The previous prime is 68916191. The next prime is 68916217. The reversal of 68916196 is 69161986.

It can be written as a sum of positive squares in only one way, i.e., 60621796 + 8294400 = 7786^2 + 2880^2 .

It is a super-2 number, since 2×689161962 = 9498884142220832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68916191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8614521 + ... + 8614528.

Almost surely, 268916196 is an apocalyptic number.

It is an amenable number.

68916196 is a deficient number, since it is larger than the sum of its proper divisors (51687154).

68916196 is a wasteful number, since it uses less digits than its factorization.

68916196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17229053 (or 17229051 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 68916196 is about 8301.5779222989. The cubic root of 68916196 is about 409.9904737029.

The spelling of 68916196 in words is "sixty-eight million, nine hundred sixteen thousand, one hundred ninety-six".

Divisors: 1 2 4 17229049 34458098 68916196