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20130932 = 2222921977
BaseRepresentation
bin100110011001…
…0110001110100
31101212202110002
41030302301310
520123142212
61555250432
7333052523
oct114626164
941782402
1020130932
11103aa738
1268a9a18
13422abc3
1429604ba
151b79ac2
hex1332c74

20130932 has 12 divisors (see below), whose sum is σ = 35384580. Its totient is φ = 10021056.

The previous prime is 20130931. The next prime is 20130949. The reversal of 20130932 is 23903102.

It can be written as a sum of positive squares in 2 ways, for example, as 14776336 + 5354596 = 3844^2 + 2314^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130931) 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, 10073 + ... + 11904.

It is an arithmetic number, because the mean of its divisors is an integer number (2948715).

Almost surely, 220130932 is an apocalyptic number.

It is an amenable number.

20130932 is a deficient number, since it is larger than the sum of its proper divisors (15253648).

20130932 is a wasteful number, since it uses less digits than its factorization.

20130932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22210 (or 22208 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 20130932 is about 4486.7507173900. The cubic root of 20130932 is about 272.0328139478.

The spelling of 20130932 in words is "twenty million, one hundred thirty thousand, nine hundred thirty-two".

Divisors: 1 2 4 229 458 916 21977 43954 87908 5032733 10065466 20130932