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68022700 = 2252897643
BaseRepresentation
bin1000000110111…
…11000110101100
311201222220121021
410003133012230
5114403211300
610425543524
71454116624
oct403370654
9151886537
1068022700
1135440509
121a944ba4
1311128825
149069884
155e89d1a
hex40df1ac

68022700 has 36 divisors (see below), whose sum is σ = 149287320. Its totient is φ = 26899840.

The previous prime is 68022697. The next prime is 68022701. The reversal of 68022700 is 722086.

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

It is not an unprimeable number, because it can be changed into a prime (68022701) 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 11 ways as a sum of consecutive naturals, for example, 5079 + ... + 12721.

It is an arithmetic number, because the mean of its divisors is an integer number (4146870).

Almost surely, 268022700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68022700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74643660).

68022700 is an abundant number, since it is smaller than the sum of its proper divisors (81264620).

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

68022700 is a wasteful number, since it uses less digits than its factorization.

68022700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7746 (or 7739 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 68022700 is about 8247.5875260588. The cubic root of 68022700 is about 408.2109235558.

Adding to 68022700 its reverse (722086), we get a palindrome (68744786).

The spelling of 68022700 in words is "sixty-eight million, twenty-two thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 89 100 178 356 445 890 1780 2225 4450 7643 8900 15286 30572 38215 76430 152860 191075 382150 680227 764300 1360454 2720908 3401135 6802270 13604540 17005675 34011350 68022700