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68235955 = 5371033581
BaseRepresentation
bin1000001000100…
…11001010110011
311202101202010121
410010103022303
5114432022310
610434311111
71455665434
oct404231263
9152352117
1068235955
1135576757
121aa28497
13111a1908
1490c348b
155ecd0da
hex41132b3

68235955 has 16 divisors (see below), whose sum is σ = 84936384. Its totient is φ = 52583040.

The previous prime is 68235953. The next prime is 68235961. The reversal of 68235955 is 55953286.

It is not a de Polignac number, because 68235955 - 21 = 68235953 is a prime.

It is a super-2 number, since 2×682359552 = 9312291109524050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68235953) 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 15 ways as a sum of consecutive naturals, for example, 17265 + ... + 20845.

It is an arithmetic number, because the mean of its divisors is an integer number (5308524).

Almost surely, 268235955 is an apocalyptic number.

68235955 is a deficient number, since it is larger than the sum of its proper divisors (16700429).

68235955 is a wasteful number, since it uses less digits than its factorization.

68235955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726.

The product of its digits is 324000, while the sum is 43.

The square root of 68235955 is about 8260.5057351230. The cubic root of 68235955 is about 408.6370666256.

The spelling of 68235955 in words is "sixty-eight million, two hundred thirty-five thousand, nine hundred fifty-five".

Divisors: 1 5 37 103 185 515 3581 3811 17905 19055 132497 368843 662485 1844215 13647191 68235955