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20063173 = 132118717
BaseRepresentation
bin100110010001…
…0001111000101
31101202022111111
41030202033011
520114010143
61554005021
7332351134
oct114421705
941668444
1020063173
1110363839
126876771
134206100
14294391b
151b6499d
hex13223c5

20063173 has 6 divisors (see below), whose sum is σ = 21725394. Its totient is φ = 18519696.

The previous prime is 20063167. The next prime is 20063177. The reversal of 20063173 is 37136002.

It can be written as a sum of positive squares in 3 ways, for example, as 1684804 + 18378369 = 1298^2 + 4287^2 .

It is not a de Polignac number, because 20063173 - 29 = 20062661 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 (20063177) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 59190 + ... + 59527.

It is an arithmetic number, because the mean of its divisors is an integer number (3620899).

Almost surely, 220063173 is an apocalyptic number.

It is an amenable number.

20063173 is a deficient number, since it is larger than the sum of its proper divisors (1662221).

20063173 is a wasteful number, since it uses less digits than its factorization.

20063173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118743 (or 118730 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 20063173 is about 4479.1933425562. The cubic root of 20063173 is about 271.7272577829.

Adding to 20063173 its reverse (37136002), we get a palindrome (57199175).

It can be divided in two parts, 200631 and 73, that added together give a square (200704 = 4482).

The spelling of 20063173 in words is "twenty million, sixty-three thousand, one hundred seventy-three".

Divisors: 1 13 169 118717 1543321 20063173