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20601283 is a prime number
BaseRepresentation
bin100111010010…
…1100111000011
31102202122122111
41032211213003
520233220113
62013320151
7340052023
oct116454703
942678574
1020601283
11106a105a
126a96057
134364011
142a43a83
151c1e13d
hex13a59c3

20601283 has 2 divisors, whose sum is σ = 20601284. Its totient is φ = 20601282.

The previous prime is 20601277. The next prime is 20601319. The reversal of 20601283 is 38210602.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20601283 is a prime.

It is a super-2 number, since 2×206012832 = 848825722492178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20601233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10300641 + 10300642.

It is an arithmetic number, because the mean of its divisors is an integer number (10300642).

Almost surely, 220601283 is an apocalyptic number.

20601283 is a deficient number, since it is larger than the sum of its proper divisors (1).

20601283 is an equidigital number, since it uses as much as digits as its factorization.

20601283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 20601283 is about 4538.8636243007. The cubic root of 20601283 is about 274.1351696011.

Adding to 20601283 its reverse (38210602), we get a palindrome (58811885).

The spelling of 20601283 in words is "twenty million, six hundred one thousand, two hundred eighty-three".