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68884065 = 3254397367
BaseRepresentation
bin1000001101100…
…01011001100001
311210121200011200
410012301121201
5120113242230
610500231413
71464335115
oct406613141
9153550150
1068884065
1135979688
121b09b569
131136a903
149211745
1560aa160
hex41b1661

68884065 has 48 divisors (see below), whose sum is σ = 123771648. Its totient is φ = 35417088.

The previous prime is 68884043. The next prime is 68884087. The reversal of 68884065 is 56048886.

It is an interprime number because it is at equal distance from previous prime (68884043) and next prime (68884087).

It is not a de Polignac number, because 68884065 - 26 = 68884001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68884065.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 187512 + ... + 187878.

It is an arithmetic number, because the mean of its divisors is an integer number (2578576).

Almost surely, 268884065 is an apocalyptic number.

It is an amenable number.

68884065 is a deficient number, since it is larger than the sum of its proper divisors (54887583).

68884065 is a wasteful number, since it uses less digits than its factorization.

68884065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 68884065 is about 8299.6424621787. The cubic root of 68884065 is about 409.9267467780.

The spelling of 68884065 in words is "sixty-eight million, eight hundred eighty-four thousand, sixty-five".

Divisors: 1 3 5 9 15 43 45 97 129 215 291 367 387 485 645 873 1101 1455 1835 1935 3303 4171 4365 5505 12513 15781 16515 20855 35599 37539 47343 62565 78905 106797 142029 177995 187695 236715 320391 533985 710145 1530757 1601955 4592271 7653785 13776813 22961355 68884065