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68699308 = 2217174827
BaseRepresentation
bin1000001100001…
…00010010101100
311210021021201211
410012010102230
5120041334213
610452244204
71462635346
oct406042254
9153237654
1068699308
1135862897
121b010664
13113047a2
1491a4296
15607053d
hex41844ac

68699308 has 6 divisors (see below), whose sum is σ = 120223796. Its totient is φ = 34349652.

The previous prime is 68699303. The next prime is 68699311. The reversal of 68699308 is 80399686.

It is not an unprimeable number, because it can be changed into a prime (68699303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8587410 + ... + 8587417.

Almost surely, 268699308 is an apocalyptic number.

It is an amenable number.

68699308 is a deficient number, since it is larger than the sum of its proper divisors (51524488).

68699308 is a wasteful number, since it uses less digits than its factorization.

68699308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17174831 (or 17174829 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 68699308 is about 8288.5045695831. The cubic root of 68699308 is about 409.5599244009.

The spelling of 68699308 in words is "sixty-eight million, six hundred ninety-nine thousand, three hundred eight".

Divisors: 1 2 4 17174827 34349654 68699308