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28076001 = 39358667
BaseRepresentation
bin110101100011…
…0011111100001
31221211102000220
41223012133201
524141413001
62441433253
7460433142
oct153063741
957742026
1028076001
1114936a08
12949b829
135a80325
143a2bac9
1526e8c36
hex1ac67e1

28076001 has 4 divisors (see below), whose sum is σ = 37434672. Its totient is φ = 18717332.

The previous prime is 28075991. The next prime is 28076057. The reversal of 28076001 is 10067082.

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 28076001 - 26 = 28075937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28076101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4679331 + ... + 4679336.

It is an arithmetic number, because the mean of its divisors is an integer number (9358668).

Almost surely, 228076001 is an apocalyptic number.

It is an amenable number.

28076001 is a deficient number, since it is larger than the sum of its proper divisors (9358671).

28076001 is an equidigital number, since it uses as much as digits as its factorization.

28076001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9358670.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 28076001 is about 5298.6791750398. The cubic root of 28076001 is about 303.9333915990.

The spelling of 28076001 in words is "twenty-eight million, seventy-six thousand, one".

Divisors: 1 3 9358667 28076001