Search a number
-
+
28484301 = 39494767
BaseRepresentation
bin110110010101…
…0001011001101
31222121011010010
41230222023031
524242444201
62454303433
7464053416
oct154521315
958534103
1028484301
111509574a
129657b79
135b94121
143ad680d
152779bd6
hex1b2a2cd

28484301 has 4 divisors (see below), whose sum is σ = 37979072. Its totient is φ = 18989532.

The previous prime is 28484273. The next prime is 28484311. The reversal of 28484301 is 10348482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28484301 - 213 = 28476109 is a prime.

It is a super-2 number, since 2×284843012 = 1622710806917202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28484311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4747381 + ... + 4747386.

It is an arithmetic number, because the mean of its divisors is an integer number (9494768).

Almost surely, 228484301 is an apocalyptic number.

It is an amenable number.

28484301 is a deficient number, since it is larger than the sum of its proper divisors (9494771).

28484301 is an equidigital number, since it uses as much as digits as its factorization.

28484301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9494770.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 28484301 is about 5337.0685774121. The cubic root of 28484301 is about 305.3996409527.

The spelling of 28484301 in words is "twenty-eight million, four hundred eighty-four thousand, three hundred one".

Divisors: 1 3 9494767 28484301