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68668096 = 267153277
BaseRepresentation
bin1000001011111…
…00101011000000
311210012200220211
410011330223000
5120034334341
610451443504
71462445350
oct405745300
9153180824
1068668096
11358413a2
121abb6594
13112c3513
149196b60
156066181
hex417cac0

68668096 has 28 divisors (see below), whose sum is σ = 155730448. Its totient is φ = 29428992.

The previous prime is 68668091. The next prime is 68668097. The reversal of 68668096 is 69086686.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (68668091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76191 + ... + 77086.

Almost surely, 268668096 is an apocalyptic number.

It is an amenable number.

68668096 is an abundant number, since it is smaller than the sum of its proper divisors (87062352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68668096 is a wasteful number, since it uses less digits than its factorization.

68668096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153296 (or 153286 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 68668096 is about 8286.6215069834. The cubic root of 68668096 is about 409.4978901964.

The spelling of 68668096 in words is "sixty-eight million, six hundred sixty-eight thousand, ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 224 448 153277 306554 613108 1072939 1226216 2145878 2452432 4291756 4904864 8583512 9809728 17167024 34334048 68668096