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68122150 = 2521362443
BaseRepresentation
bin1000000111101…
…11011000100110
311202011222000121
410003313120212
5114414402100
610432032154
71455012565
oct403673046
9152158017
1068122150
11354a91a8
121a99265a
1311161b85
149093bdc
155ea951a
hex40f7626

68122150 has 12 divisors (see below), whose sum is σ = 126707292. Its totient is φ = 27248840.

The previous prime is 68122127. The next prime is 68122151. The reversal of 68122150 is 5122186.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68122151) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 681172 + ... + 681271.

It is an arithmetic number, because the mean of its divisors is an integer number (10558941).

Almost surely, 268122150 is an apocalyptic number.

68122150 is a deficient number, since it is larger than the sum of its proper divisors (58585142).

68122150 is a wasteful number, since it uses less digits than its factorization.

68122150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362455 (or 1362450 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 68122150 is about 8253.6143597820. The cubic root of 68122150 is about 408.4097631009.

The spelling of 68122150 in words is "sixty-eight million, one hundred twenty-two thousand, one hundred fifty".

Divisors: 1 2 5 10 25 50 1362443 2724886 6812215 13624430 34061075 68122150