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28246801 = 112567891
BaseRepresentation
bin110101111000…
…0001100010001
31222011002022211
41223300030101
524212344201
62445232121
7462044122
oct153601421
958132284
1028246801
1114a43270
129562641
135b0ccab
143a74049
15272e651
hex1af0311

28246801 has 4 divisors (see below), whose sum is σ = 30814704. Its totient is φ = 25678900.

The previous prime is 28246793. The next prime is 28246807. The reversal of 28246801 is 10864282.

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 a cyclic number.

It is not a de Polignac number, because 28246801 - 23 = 28246793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28246807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283935 + ... + 1283956.

It is an arithmetic number, because the mean of its divisors is an integer number (7703676).

Almost surely, 228246801 is an apocalyptic number.

It is an amenable number.

28246801 is a deficient number, since it is larger than the sum of its proper divisors (2567903).

28246801 is a wasteful number, since it uses less digits than its factorization.

28246801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567902.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 28246801 is about 5314.7719612416. The cubic root of 28246801 is about 304.5484709963.

The spelling of 28246801 in words is "twenty-eight million, two hundred forty-six thousand, eight hundred one".

Divisors: 1 11 2567891 28246801