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BaseRepresentation
bin100111010001011
31000120201
410322023
51120412
6233031
7112423
oct47213
930521
1020107
111411a
12b777
1391c9
147483
155e57
hex4e8b

20107 has 2 divisors, whose sum is σ = 20108. Its totient is φ = 20106.

The previous prime is 20101. The next prime is 20113. The reversal of 20107 is 70102.

It is a balanced prime because it is at equal distance from previous prime (20101) and next prime (20113).

It is a cyclic number.

It is not a de Polignac number, because 20107 - 27 = 19979 is a prime.

It is a Chen prime.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 20093 and 20102.

It is not a weakly prime, because it can be changed into another prime (20101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10053 + 10054.

It is an arithmetic number, because the mean of its divisors is an integer number (10054).

220107 is an apocalyptic number.

20107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20107 is an equidigital number, since it uses as much as digits as its factorization.

20107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 20107 is about 141.7991537351. The cubic root of 20107 is about 27.1924972098.

Adding to 20107 its reverse (70102), we get a palindrome (90209).

The spelling of 20107 in words is "twenty thousand, one hundred seven", and thus it is an iban number.