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68622222 = 2311437037
BaseRepresentation
bin1000001011100…
…01011110001110
311210010100222210
410011301132032
5120031402342
610450451250
71462164534
oct405613616
9153110883
1068622222
113580a989
121ab93b26
13112a8686
149184154
15605779c
hex417178e

68622222 has 8 divisors (see below), whose sum is σ = 137244456. Its totient is φ = 22874072.

The previous prime is 68622221. The next prime is 68622259. The reversal of 68622222 is 22222686.

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

68622222 is an admirable number.

68622222 is a modest number, since divided by 22222 gives 686 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 68622222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68622221) 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 3 ways as a sum of consecutive naturals, for example, 5718513 + ... + 5718524.

It is an arithmetic number, because the mean of its divisors is an integer number (17155557).

Almost surely, 268622222 is an apocalyptic number.

68622222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68622222 is a wasteful number, since it uses less digits than its factorization.

68622222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11437042.

The product of its digits is 9216, while the sum is 30.

The square root of 68622222 is about 8283.8530889919. The cubic root of 68622222 is about 409.4066809738.

The spelling of 68622222 in words is "sixty-eight million, six hundred twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 11437037 22874074 34311111 68622222