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28245199 is a prime number
BaseRepresentation
bin110101110111…
…1110011001111
31222011000010111
41223233303033
524212321244
62445220451
7462036343
oct153576317
958130114
1028245199
1114a42044
129561727
135b0c348
143a73623
15272de34
hex1aefccf

28245199 has 2 divisors, whose sum is σ = 28245200. Its totient is φ = 28245198.

The previous prime is 28245179. The next prime is 28245227. The reversal of 28245199 is 99154282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28245199 - 211 = 28243151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28245169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14122599 + 14122600.

It is an arithmetic number, because the mean of its divisors is an integer number (14122600).

Almost surely, 228245199 is an apocalyptic number.

28245199 is a deficient number, since it is larger than the sum of its proper divisors (1).

28245199 is an equidigital number, since it uses as much as digits as its factorization.

28245199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 28245199 is about 5314.6212470881. The cubic root of 28245199 is about 304.5427134608.

The spelling of 28245199 in words is "twenty-eight million, two hundred forty-five thousand, one hundred ninety-nine".