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204420001 is a prime number
BaseRepresentation
bin11000010111100…
…11001110100001
3112020122121112011
430023303032201
5404312420001
632141232521
75031353452
oct1413631641
9466577464
10204420001
11a5431855
1258562741
13334740a6
141d213129
1512e2dd51
hexc2f33a1

204420001 has 2 divisors, whose sum is σ = 204420002. Its totient is φ = 204420000.

The previous prime is 204419977. The next prime is 204420011. The reversal of 204420001 is 100024402.

204420001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104019601 + 100400400 = 10199^2 + 10020^2 .

It is a cyclic number.

It is not a de Polignac number, because 204420001 - 29 = 204419489 is a prime.

It is not a weakly prime, because it can be changed into another prime (204420011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102210000 + 102210001.

It is an arithmetic number, because the mean of its divisors is an integer number (102210001).

Almost surely, 2204420001 is an apocalyptic number.

It is an amenable number.

204420001 is a deficient number, since it is larger than the sum of its proper divisors (1).

204420001 is an equidigital number, since it uses as much as digits as its factorization.

204420001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 204420001 is about 14297.5522730291. The cubic root of 204420001 is about 589.0802494132.

Adding to 204420001 its reverse (100024402), we get a palindrome (304444403).

The spelling of 204420001 in words is "two hundred four million, four hundred twenty thousand, one".