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20130050 = 252402601
BaseRepresentation
bin100110011001…
…0100100000010
31101212201020102
41030302210002
520123130200
61555242402
7333050123
oct114624402
941781212
1020130050
11103aa006
1268a9402
13422a695
14296004a
151b796d5
hex1332902

20130050 has 12 divisors (see below), whose sum is σ = 37441986. Its totient is φ = 8052000.

The previous prime is 20130043. The next prime is 20130079. The reversal of 20130050 is 5003102.

It can be written as a sum of positive squares in 3 ways, for example, as 18088009 + 2042041 = 4253^2 + 1429^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201251 + ... + 201350.

Almost surely, 220130050 is an apocalyptic number.

20130050 is a deficient number, since it is larger than the sum of its proper divisors (17311936).

20130050 is a wasteful number, since it uses less digits than its factorization.

20130050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402613 (or 402608 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 20130050 is about 4486.6524269214. The cubic root of 20130050 is about 272.0288410162.

Adding to 20130050 its reverse (5003102), we get a palindrome (25133152).

The spelling of 20130050 in words is "twenty million, one hundred thirty thousand, fifty".

Divisors: 1 2 5 10 25 50 402601 805202 2013005 4026010 10065025 20130050