Search a number
-
+
20350079 is a prime number
BaseRepresentation
bin100110110100…
…0010001111111
31102021220001122
41031220101333
520202200304
62004101155
7334654451
oct115502177
942256048
1020350079
111053a352
1269947bb
1342a6889
1429ba2d1
151bbe9be
hex136847f

20350079 has 2 divisors, whose sum is σ = 20350080. Its totient is φ = 20350078.

The previous prime is 20350073. The next prime is 20350081. The reversal of 20350079 is 97005302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20350079 is a prime.

Together with 20350081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20350073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175039 + 10175040.

It is an arithmetic number, because the mean of its divisors is an integer number (10175040).

Almost surely, 220350079 is an apocalyptic number.

20350079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20350079 is an equidigital number, since it uses as much as digits as its factorization.

20350079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 20350079 is about 4511.1061836317. The cubic root of 20350079 is about 273.0163774295.

The spelling of 20350079 in words is "twenty million, three hundred fifty thousand, seventy-nine".