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20627153 is a prime number
BaseRepresentation
bin100111010101…
…1111011010001
31102210222010122
41032223323101
520240032103
62014040025
7340220321
oct116537321
942728118
1020627153
1110709538
126aa9015
134372a21
142a4d281
151c26b38
hex13abed1

20627153 has 2 divisors, whose sum is σ = 20627154. Its totient is φ = 20627152.

The previous prime is 20627111. The next prime is 20627197. The reversal of 20627153 is 35172602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15460624 + 5166529 = 3932^2 + 2273^2 .

It is a cyclic number.

It is not a de Polignac number, because 20627153 - 28 = 20626897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20627753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10313576 + 10313577.

It is an arithmetic number, because the mean of its divisors is an integer number (10313577).

Almost surely, 220627153 is an apocalyptic number.

It is an amenable number.

20627153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20627153 is an equidigital number, since it uses as much as digits as its factorization.

20627153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 20627153 is about 4541.7125624592. The cubic root of 20627153 is about 274.2498697450.

Adding to 20627153 its reverse (35172602), we get a palindrome (55799755).

The spelling of 20627153 in words is "twenty million, six hundred twenty-seven thousand, one hundred fifty-three".