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68222337 = 3109208631
BaseRepresentation
bin1000001000011…
…11110110000001
311202101001110020
410010033312001
5114431103322
610434124053
71455610641
oct404176601
9152331406
1068222337
11355674a7
121aa20629
1311198661
1490bc521
155ec905c
hex410fd81

68222337 has 8 divisors (see below), whose sum is σ = 91798080. Its totient is φ = 45064080.

The previous prime is 68222321. The next prime is 68222417. The reversal of 68222337 is 73322286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68222337 - 24 = 68222321 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 68222298 and 68222307.

It is not an unprimeable number, because it can be changed into a prime (68222317) 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, 103989 + ... + 104642.

It is an arithmetic number, because the mean of its divisors is an integer number (11474760).

Almost surely, 268222337 is an apocalyptic number.

It is an amenable number.

68222337 is a deficient number, since it is larger than the sum of its proper divisors (23575743).

68222337 is a wasteful number, since it uses less digits than its factorization.

68222337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208743.

The product of its digits is 24192, while the sum is 33.

The square root of 68222337 is about 8259.6814103209. The cubic root of 68222337 is about 408.6098806168.

The spelling of 68222337 in words is "sixty-eight million, two hundred twenty-two thousand, three hundred thirty-seven".

Divisors: 1 3 109 327 208631 625893 22740779 68222337