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20325265 = 519121283
BaseRepresentation
bin100110110001…
…0001110010001
31102020122000121
41031202032101
520200402030
62003350241
7334522222
oct115421621
942218017
1020325265
1110522744
126982381
1342984ac
1429b1249
151bb747a
hex1362391

20325265 has 8 divisors (see below), whose sum is σ = 24519168. Its totient is φ = 16174320.

The previous prime is 20325257. The next prime is 20325301. The reversal of 20325265 is 56252302.

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

It is not a de Polignac number, because 20325265 - 23 = 20325257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9687 + ... + 11596.

It is an arithmetic number, because the mean of its divisors is an integer number (3064896).

Almost surely, 220325265 is an apocalyptic number.

It is an amenable number.

20325265 is a deficient number, since it is larger than the sum of its proper divisors (4193903).

20325265 is a wasteful number, since it uses less digits than its factorization.

20325265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21479.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 20325265 is about 4508.3550215128. The cubic root of 20325265 is about 272.9053642025.

Adding to 20325265 its reverse (56252302), we get a palindrome (76577567).

The spelling of 20325265 in words is "twenty million, three hundred twenty-five thousand, two hundred sixty-five".

Divisors: 1 5 191 955 21283 106415 4065053 20325265