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202481 is a prime number
BaseRepresentation
bin110001011011110001
3101021202022
4301123301
522434411
64201225
71502216
oct613361
9337668
10202481
11129144
1299215
1371216
1453b0d
153eedb
hex316f1

202481 has 2 divisors, whose sum is σ = 202482. Its totient is φ = 202480.

The previous prime is 202471. The next prime is 202493. The reversal of 202481 is 184202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144400 + 58081 = 380^2 + 241^2 .

It is a cyclic number.

It is not a de Polignac number, because 202481 - 214 = 186097 is a prime.

It is a super-2 number, since 2×2024812 = 81997110722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (202441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101240 + 101241.

It is an arithmetic number, because the mean of its divisors is an integer number (101241).

2202481 is an apocalyptic number.

It is an amenable number.

202481 is a deficient number, since it is larger than the sum of its proper divisors (1).

202481 is an equidigital number, since it uses as much as digits as its factorization.

202481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 202481 is about 449.9788883937. The cubic root of 202481 is about 58.7211779555.

Adding to 202481 its reverse (184202), we get a palindrome (386683).

The spelling of 202481 in words is "two hundred two thousand, four hundred eighty-one".