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28050301 = 61459841
BaseRepresentation
bin110101100000…
…0001101111101
31221210002210001
41223000031331
524140102201
62441114301
7460265206
oct153001575
957702701
1028050301
1114919674
129488991
135a71716
143a225ad
1526e1301
hex1ac037d

28050301 has 4 divisors (see below), whose sum is σ = 28510204. Its totient is φ = 27590400.

The previous prime is 28050277. The next prime is 28050307. The reversal of 28050301 is 10305082.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 235225 + 27815076 = 485^2 + 5274^2 .

It is a cyclic number.

It is not a de Polignac number, because 28050301 - 29 = 28049789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28050307) 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, 229860 + ... + 229981.

It is an arithmetic number, because the mean of its divisors is an integer number (7127551).

Almost surely, 228050301 is an apocalyptic number.

It is an amenable number.

28050301 is a deficient number, since it is larger than the sum of its proper divisors (459903).

28050301 is an equidigital number, since it uses as much as digits as its factorization.

28050301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459902.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 28050301 is about 5296.2534871360. The cubic root of 28050301 is about 303.8406258626.

Adding to 28050301 its reverse (10305082), we get a palindrome (38355383).

The spelling of 28050301 in words is "twenty-eight million, fifty thousand, three hundred one".

Divisors: 1 61 459841 28050301