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68120626 = 2737131507
BaseRepresentation
bin1000000111101…
…11000000110010
311202011212221011
410003313000302
5114414330001
610432021134
71455005260
oct403670062
9152155834
1068120626
11354a8042
121a9917aa
1311161282
149093430
155ea8d51
hex40f7032

68120626 has 16 divisors (see below), whose sum is σ = 119935296. Its totient is φ = 28405296.

The previous prime is 68120621. The next prime is 68120629. The reversal of 68120626 is 62602186.

It is not an unprimeable number, because it can be changed into a prime (68120621) 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 7 ways as a sum of consecutive naturals, for example, 65236 + ... + 66271.

It is an arithmetic number, because the mean of its divisors is an integer number (7495956).

Almost surely, 268120626 is an apocalyptic number.

68120626 is a deficient number, since it is larger than the sum of its proper divisors (51814670).

68120626 is a wasteful number, since it uses less digits than its factorization.

68120626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131553.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 68120626 is about 8253.5220360765. The cubic root of 68120626 is about 408.4067174879.

The spelling of 68120626 in words is "sixty-eight million, one hundred twenty thousand, six hundred twenty-six".

Divisors: 1 2 7 14 37 74 259 518 131507 263014 920549 1841098 4865759 9731518 34060313 68120626