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68099884 = 2217024971
BaseRepresentation
bin1000000111100…
…01111100101100
311202010211110221
410003301330230
5114413144014
610431341124
71454560636
oct403617454
9152124427
1068099884
11354934a6
121a9817a4
13111549b8
149089a56
155ea2b24
hex40f1f2c

68099884 has 6 divisors (see below), whose sum is σ = 119174804. Its totient is φ = 34049940.

The previous prime is 68099873. The next prime is 68099887. The reversal of 68099884 is 48899086.

It is not an unprimeable number, because it can be changed into a prime (68099887) 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, 8512482 + ... + 8512489.

Almost surely, 268099884 is an apocalyptic number.

It is an amenable number.

68099884 is a deficient number, since it is larger than the sum of its proper divisors (51074920).

68099884 is a wasteful number, since it uses less digits than its factorization.

68099884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17024975 (or 17024973 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 68099884 is about 8252.2653859410. The cubic root of 68099884 is about 408.3652614583.

The spelling of 68099884 in words is "sixty-eight million, ninety-nine thousand, eight hundred eighty-four".

Divisors: 1 2 4 17024971 34049942 68099884