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20325205 = 55968899
BaseRepresentation
bin100110110001…
…0001101010101
31102020121221101
41031202031111
520200401310
62003350101
7334522105
oct115421525
942217841
1020325205
111052269a
126982331
134298464
1429b1205
151bb743a
hex1362355

20325205 has 8 divisors (see below), whose sum is σ = 24804000. Its totient is φ = 15984336.

The previous prime is 20325203. The next prime is 20325211. The reversal of 20325205 is 50252302.

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

It is a cyclic number.

It is not a de Polignac number, because 20325205 - 21 = 20325203 is a prime.

It is a super-2 number, since 2×203252052 = 826227916584050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20325203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34155 + ... + 34744.

It is an arithmetic number, because the mean of its divisors is an integer number (3100500).

Almost surely, 220325205 is an apocalyptic number.

It is an amenable number.

20325205 is a deficient number, since it is larger than the sum of its proper divisors (4478795).

20325205 is an equidigital number, since it uses as much as digits as its factorization.

20325205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68963.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20325205 is about 4508.3483671961. The cubic root of 20325205 is about 272.9050956641.

Adding to 20325205 its reverse (50252302), we get a palindrome (70577507).

The spelling of 20325205 in words is "twenty million, three hundred twenty-five thousand, two hundred five".

Divisors: 1 5 59 295 68899 344495 4065041 20325205