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28841075 = 521153643
BaseRepresentation
bin110111000000…
…1010001110011
32000021021111222
41232001101303
524340403300
62510055255
7500100524
oct156012163
960237458
1028841075
11153097aa
1297aa52b
135c8a633
143b8a84b
1527ea785
hex1b81473

28841075 has 6 divisors (see below), whose sum is σ = 35762964. Its totient is φ = 23072840.

The previous prime is 28841047. The next prime is 28841077. The reversal of 28841075 is 57014882.

It is not a de Polignac number, because 28841075 - 210 = 28840051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28841077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 576797 + ... + 576846.

It is an arithmetic number, because the mean of its divisors is an integer number (5960494).

Almost surely, 228841075 is an apocalyptic number.

28841075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28841075 is a deficient number, since it is larger than the sum of its proper divisors (6921889).

28841075 is a wasteful number, since it uses less digits than its factorization.

28841075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153653 (or 1153648 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 28841075 is about 5370.3887196366. The cubic root of 28841075 is about 306.6694266975.

The spelling of 28841075 in words is "twenty-eight million, eight hundred forty-one thousand, seventy-five".

Divisors: 1 5 25 1153643 5768215 28841075