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20130371 is a prime number
BaseRepresentation
bin100110011001…
…0101001000011
31101212201200022
41030302221003
520123132441
61555244055
7333051062
oct114625103
941781608
1020130371
11103aa278
1268a962b
13422a881
1429601d9
151b7984b
hex1332a43

20130371 has 2 divisors, whose sum is σ = 20130372. Its totient is φ = 20130370.

The previous prime is 20130349. The next prime is 20130391. The reversal of 20130371 is 17303102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20130371 - 218 = 19868227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20130391) 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 as a sum of consecutive naturals, namely, 10065185 + 10065186.

It is an arithmetic number, because the mean of its divisors is an integer number (10065186).

Almost surely, 220130371 is an apocalyptic number.

20130371 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130371 is an equidigital number, since it uses as much as digits as its factorization.

20130371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 20130371 is about 4486.6881995521. The cubic root of 20130371 is about 272.0302869605.

Adding to 20130371 its reverse (17303102), we get a palindrome (37433473).

The spelling of 20130371 in words is "twenty million, one hundred thirty thousand, three hundred seventy-one".