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202049 is a prime number
BaseRepresentation
bin110001010101000001
3101021011022
4301111001
522431144
64155225
71501031
oct612501
9337138
10202049
11128891
1298b15
1370c73
14538c1
153ecee
hex31541

202049 has 2 divisors, whose sum is σ = 202050. Its totient is φ = 202048.

The previous prime is 202031. The next prime is 202061. The reversal of 202049 is 940202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148225 + 53824 = 385^2 + 232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-202049 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p18152 and since 202049 and 18152 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (202099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101024 + 101025.

It is an arithmetic number, because the mean of its divisors is an integer number (101025).

2202049 is an apocalyptic number.

It is an amenable number.

202049 is a deficient number, since it is larger than the sum of its proper divisors (1).

202049 is an equidigital number, since it uses as much as digits as its factorization.

202049 is an odious number, because the sum of its binary digits is odd.

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

The square root of 202049 is about 449.4986095640. The cubic root of 202049 is about 58.6793870202.

The spelling of 202049 in words is "two hundred two thousand, forty-nine".