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68444198 = 234222099
BaseRepresentation
bin1000001010001…
…10000000100110
311202210022210022
410011012000212
5120010203243
610442555142
71460523524
oct405060046
9152708708
1068444198
11356a9159
121ab08ab2
1311245634
149139314
15601eb68
hex4146026

68444198 has 4 divisors (see below), whose sum is σ = 102666300. Its totient is φ = 34222098.

The previous prime is 68444197. The next prime is 68444203. The reversal of 68444198 is 89144486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89144486 = 244572243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68444197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17111048 + ... + 17111051.

It is an arithmetic number, because the mean of its divisors is an integer number (25666575).

Almost surely, 268444198 is an apocalyptic number.

68444198 is a deficient number, since it is larger than the sum of its proper divisors (34222102).

68444198 is a wasteful number, since it uses less digits than its factorization.

68444198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34222101.

The product of its digits is 221184, while the sum is 44.

The square root of 68444198 is about 8273.1008696860. The cubic root of 68444198 is about 409.0523383583.

The spelling of 68444198 in words is "sixty-eight million, four hundred forty-four thousand, one hundred ninety-eight".

Divisors: 1 2 34222099 68444198