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68510275 = 5283137241
BaseRepresentation
bin1000001010101…
…10001001000011
311202220200102121
410011112021003
5120014312100
610444225111
71461220261
oct405261103
9152820377
1068510275
1135743869
121ab3b197
1311269732
149155431
15603451a
hex4156243

68510275 has 24 divisors (see below), whose sum is σ = 86963184. Its totient is φ = 53529600.

The previous prime is 68510237. The next prime is 68510287. The reversal of 68510275 is 57201586.

It is not a de Polignac number, because 68510275 - 27 = 68510147 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68510275.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284155 + ... + 284395.

It is an arithmetic number, because the mean of its divisors is an integer number (3623466).

Almost surely, 268510275 is an apocalyptic number.

68510275 is a deficient number, since it is larger than the sum of its proper divisors (18452909).

68510275 is a wasteful number, since it uses less digits than its factorization.

68510275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 68510275 is about 8277.0933907985. The cubic root of 68510275 is about 409.1839309976.

The spelling of 68510275 in words is "sixty-eight million, five hundred ten thousand, two hundred seventy-five".

Divisors: 1 5 25 83 137 241 415 685 1205 2075 3425 6025 11371 20003 33017 56855 100015 165085 284275 500075 825425 2740411 13702055 68510275