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28852811 = 1319199587
BaseRepresentation
bin110111000010…
…0001001001011
32000021212121122
41232010021023
524341242221
62510225455
7500146661
oct156041113
960255548
1028852811
11153175a9
1297b528b
135c92a90
143b90c31
1527edeab
hex1b8424b

28852811 has 16 divisors (see below), whose sum is σ = 32928000. Its totient is φ = 25062048.

The previous prime is 28852801. The next prime is 28852841. The reversal of 28852811 is 11825882.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28852811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28852801) 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 15 ways as a sum of consecutive naturals, for example, 48860 + ... + 49446.

It is an arithmetic number, because the mean of its divisors is an integer number (2058000).

Almost surely, 228852811 is an apocalyptic number.

28852811 is a deficient number, since it is larger than the sum of its proper divisors (4075189).

28852811 is a wasteful number, since it uses less digits than its factorization.

28852811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its digits is 10240, while the sum is 35.

The square root of 28852811 is about 5371.4812668388. The cubic root of 28852811 is about 306.7110176613.

The spelling of 28852811 in words is "twenty-eight million, eight hundred fifty-two thousand, eight hundred eleven".

Divisors: 1 13 19 199 247 587 2587 3781 7631 11153 49153 116813 144989 1518569 2219447 28852811