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195030833 is a prime number
BaseRepresentation
bin10111001111111…
…10111100110001
3111120222121000012
423213332330301
5344411441313
631204104305
74555510004
oct1347767461
9446877005
10195030833
11a00a9608
1255395095
133153757a
141bc8b53b
15121c6da8
hexb9fef31

195030833 has 2 divisors, whose sum is σ = 195030834. Its totient is φ = 195030832.

The previous prime is 195030799. The next prime is 195030863. The reversal of 195030833 is 338030591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193571569 + 1459264 = 13913^2 + 1208^2 .

It is an emirp because it is prime and its reverse (338030591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195030833 - 216 = 194965297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 195030833.

It is not a weakly prime, because it can be changed into another prime (195030863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97515416 + 97515417.

It is an arithmetic number, because the mean of its divisors is an integer number (97515417).

Almost surely, 2195030833 is an apocalyptic number.

It is an amenable number.

195030833 is a deficient number, since it is larger than the sum of its proper divisors (1).

195030833 is an equidigital number, since it uses as much as digits as its factorization.

195030833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 195030833 is about 13965.3439986275. The cubic root of 195030833 is about 579.9195617739.

The spelling of 195030833 in words is "one hundred ninety-five million, thirty thousand, eight hundred thirty-three".