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728115 = 3548541
BaseRepresentation
bin10110001110000110011
31100222210020
42301300303
5141244430
623334523
76121533
oct2616063
91328706
10728115
11458053
122b1443
131c654b
1414d4c3
15e5b10
hexb1c33

728115 has 8 divisors (see below), whose sum is σ = 1165008. Its totient is φ = 388320.

The previous prime is 728113. The next prime is 728129. The reversal of 728115 is 511827.

728115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 728115 - 21 = 728113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24256 + ... + 24285.

It is an arithmetic number, because the mean of its divisors is an integer number (145626).

2728115 is an apocalyptic number.

728115 is a deficient number, since it is larger than the sum of its proper divisors (436893).

728115 is a wasteful number, since it uses less digits than its factorization.

728115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48549.

The product of its digits is 560, while the sum is 24.

The square root of 728115 is about 853.2965486863. The cubic root of 728115 is about 89.9635654992.

The spelling of 728115 in words is "seven hundred twenty-eight thousand, one hundred fifteen".

Divisors: 1 3 5 15 48541 145623 242705 728115