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68508022 = 21121312161
BaseRepresentation
bin1000001010101…
…01100101110110
311202220120100011
410011111211312
5120014224042
610444210434
71461210562
oct405254566
9152816304
1068508022
1135742100
121ab39a1a
13112686bb
1491546a2
156033a17
hex4155976

68508022 has 24 divisors (see below), whose sum is σ = 113868216. Its totient is φ = 30888000.

The previous prime is 68508019. The next prime is 68508031. The reversal of 68508022 is 22080586.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30622 + ... + 32782.

It is an arithmetic number, because the mean of its divisors is an integer number (4744509).

Almost surely, 268508022 is an apocalyptic number.

68508022 is a deficient number, since it is larger than the sum of its proper divisors (45360194).

68508022 is a wasteful number, since it uses less digits than its factorization.

68508022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316 (or 2305 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 68508022 is about 8276.9572911789. The cubic root of 68508022 is about 409.1794455317.

The spelling of 68508022 in words is "sixty-eight million, five hundred eight thousand, twenty-two".

Divisors: 1 2 11 22 121 131 242 262 1441 2161 2882 4322 15851 23771 31702 47542 261481 283091 522962 566182 3114001 6228002 34254011 68508022