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20202029 is a prime number
BaseRepresentation
bin100110100010…
…0001000101101
31102000100222022
41031010020231
520132431104
62000555525
7333500021
oct115041055
942010868
1020202029
11104490a1
126922ba5
134254383
14297c381
151b90bbe
hex134422d

20202029 has 2 divisors, whose sum is σ = 20202030. Its totient is φ = 20202028.

The previous prime is 20202019. The next prime is 20202031. The reversal of 20202029 is 92020202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18472804 + 1729225 = 4298^2 + 1315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20202029 is a prime.

Together with 20202031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20201998 and 20202016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101014 + 10101015.

It is an arithmetic number, because the mean of its divisors is an integer number (10101015).

Almost surely, 220202029 is an apocalyptic number.

It is an amenable number.

20202029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202029 is an equidigital number, since it uses as much as digits as its factorization.

20202029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20202029 is about 4494.6667284683. Note that the first 3 decimals coincide. The cubic root of 20202029 is about 272.3526864176.

The spelling of 20202029 in words is "twenty million, two hundred two thousand, twenty-nine".