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68684848 = 24191012237
BaseRepresentation
bin1000001100000…
…00110000110000
311210020112220021
410012000300300
5120040403343
610452053224
71462545241
oct406006060
9153215807
1068684848
1135852a41
121b004214
13112cb02b
14919ccc8
15606b0ed
hex4180c30

68684848 has 40 divisors (see below), whose sum is σ = 141531120. Its totient is φ = 32198400.

The previous prime is 68684821. The next prime is 68684857. The reversal of 68684848 is 84848686.

It is a junction number, because it is equal to n+sod(n) for n = 68684795 and 68684804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29586 + ... + 31822.

It is an arithmetic number, because the mean of its divisors is an integer number (3538278).

Almost surely, 268684848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68684848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70765560).

68684848 is an abundant number, since it is smaller than the sum of its proper divisors (72846272).

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

68684848 is a wasteful number, since it uses less digits than its factorization.

68684848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365 (or 2359 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 52.

The square root of 68684848 is about 8287.6322312226. The cubic root of 68684848 is about 409.5311873232.

The spelling of 68684848 in words is "sixty-eight million, six hundred eighty-four thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 19 38 76 101 152 202 304 404 808 1616 1919 2237 3838 4474 7676 8948 15352 17896 30704 35792 42503 85006 170012 225937 340024 451874 680048 903748 1807496 3614992 4292803 8585606 17171212 34342424 68684848