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20293063 = 72899009
BaseRepresentation
bin100110101101…
…0010111000111
31102011222211221
41031122113013
520143334223
62002541211
7334326310
oct115322707
942158757
1020293063
111050052a
126967807
13428693b
1429a3607
151bacb5d
hex135a5c7

20293063 has 4 divisors (see below), whose sum is σ = 23192080. Its totient is φ = 17394048.

The previous prime is 20292997. The next prime is 20293067. The reversal of 20293063 is 36039202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20293063 - 217 = 20161991 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 (20293067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1449498 + ... + 1449511.

It is an arithmetic number, because the mean of its divisors is an integer number (5798020).

Almost surely, 220293063 is an apocalyptic number.

20293063 is a deficient number, since it is larger than the sum of its proper divisors (2899017).

20293063 is an equidigital number, since it uses as much as digits as its factorization.

20293063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899016.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 20293063 is about 4504.7822366902. The cubic root of 20293063 is about 272.7611636435.

The spelling of 20293063 in words is "twenty million, two hundred ninety-three thousand, sixty-three".

Divisors: 1 7 2899009 20293063