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2728055 = 511193257
BaseRepresentation
bin1010011010000001110111
312010121012002
422122001313
51144244210
6134245515
732121341
oct12320167
95117162
102728055
1115a36a0
12ab689b
13746945
14510291
1538d4a5
hex29a077

2728055 has 16 divisors (see below), whose sum is σ = 3603744. Its totient is φ = 1966080.

The previous prime is 2728051. The next prime is 2728067. The reversal of 2728055 is 5508272.

2728055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2728055 - 22 = 2728051 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 (2728051) 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, 10487 + ... + 10743.

It is an arithmetic number, because the mean of its divisors is an integer number (225234).

22728055 is an apocalyptic number.

2728055 is a deficient number, since it is larger than the sum of its proper divisors (875689).

2728055 is a wasteful number, since it uses less digits than its factorization.

2728055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 2728055 is about 1651.6824755382. The cubic root of 2728055 is about 139.7282995780.

It can be divided in two parts, 27 and 28055, that added together give a palindrome (28082).

The spelling of 2728055 in words is "two million, seven hundred twenty-eight thousand, fifty-five".

Divisors: 1 5 11 55 193 257 965 1285 2123 2827 10615 14135 49601 248005 545611 2728055