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20325871 = 53616287
BaseRepresentation
bin100110110001…
…0010111101111
31102020122212001
41031202113233
520200411441
62003353131
7334524046
oct115422757
942218761
1020325871
1110523145
1269827a7
134298857
1429b155d
151bb7731
hex13625ef

20325871 has 8 divisors (see below), whose sum is σ = 21052224. Its totient is φ = 19612320.

The previous prime is 20325853. The next prime is 20325881. The reversal of 20325871 is 17852302.

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 20325871 - 27 = 20325743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20325821) 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, 90 + ... + 6376.

It is an arithmetic number, because the mean of its divisors is an integer number (2631528).

Almost surely, 220325871 is an apocalyptic number.

20325871 is a deficient number, since it is larger than the sum of its proper divisors (726353).

20325871 is an equidigital number, since it uses as much as digits as its factorization.

20325871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6401.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 20325871 is about 4508.4222295610. The cubic root of 20325871 is about 272.9080764099.

The spelling of 20325871 in words is "twenty million, three hundred twenty-five thousand, eight hundred seventy-one".

Divisors: 1 53 61 3233 6287 333211 383507 20325871