Search a number
-
+
28795199 is a prime number
BaseRepresentation
bin110110111011…
…0000100111111
32000011221120212
41231312010333
524332421244
62505103035
7466520006
oct155660477
960157525
1028795199
1115288294
129787a7b
135c727a4
143b77c3d
1527dbd9e
hex1b7613f

28795199 has 2 divisors, whose sum is σ = 28795200. Its totient is φ = 28795198.

The previous prime is 28795189. The next prime is 28795211. The reversal of 28795199 is 99159782.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28795199 - 24 = 28795183 is a prime.

It is a super-4 number, since 4×287951994 (a number of 31 digits) contains 4444 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28795159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14397599 + 14397600.

It is an arithmetic number, because the mean of its divisors is an integer number (14397600).

Almost surely, 228795199 is an apocalyptic number.

28795199 is a deficient number, since it is larger than the sum of its proper divisors (1).

28795199 is an equidigital number, since it uses as much as digits as its factorization.

28795199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 50.

The square root of 28795199 is about 5366.1158205913. The cubic root of 28795199 is about 306.5067393647.

The spelling of 28795199 in words is "twenty-eight million, seven hundred ninety-five thousand, one hundred ninety-nine".