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205145324 = 22175095927
BaseRepresentation
bin11000011101001…
…00010011101100
3112022000110110222
430032210103230
5410004122244
632204550512
75040464216
oct1416442354
9468013428
10205145324
11a588779a
1258852438
1333669287
141d3615b6
1513023bee
hexc3a44ec

205145324 has 24 divisors (see below), whose sum is σ = 380933280. Its totient is φ = 96333056.

The previous prime is 205145323. The next prime is 205145371. The reversal of 205145324 is 423541502.

It is a happy number.

205145324 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 205145293 and 205145302.

It is not an unprimeable number, because it can be changed into a prime (205145323) 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 7 ways as a sum of consecutive naturals, for example, 31649 + ... + 37575.

It is an arithmetic number, because the mean of its divisors is an integer number (15872220).

Almost surely, 2205145324 is an apocalyptic number.

It is an amenable number.

205145324 is a deficient number, since it is larger than the sum of its proper divisors (175787956).

205145324 is a wasteful number, since it uses less digits than its factorization.

205145324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6457 (or 6455 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 205145324 is about 14322.8950984080. The cubic root of 205145324 is about 589.7761517955.

Adding to 205145324 its reverse (423541502), we get a palindrome (628686826).

The spelling of 205145324 in words is "two hundred five million, one hundred forty-five thousand, three hundred twenty-four".

Divisors: 1 2 4 17 34 68 509 1018 2036 5927 8653 11854 17306 23708 34612 100759 201518 403036 3016843 6033686 12067372 51286331 102572662 205145324