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28061295 = 3511291657
BaseRepresentation
bin110101100001…
…0111001101111
31221210122212020
41223002321233
524140430140
62441241223
7460342233
oct153027157
957718766
1028061295
1114926959
129493213
135a76722
143a265c3
1526e46d0
hex1ac2e6f

28061295 has 16 divisors (see below), whose sum is σ = 44964960. Its totient is φ = 14943744.

The previous prime is 28061279. The next prime is 28061321. The reversal of 28061295 is 59216082.

It is not a de Polignac number, because 28061295 - 24 = 28061279 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16107 + ... + 17763.

It is an arithmetic number, because the mean of its divisors is an integer number (2810310).

Almost surely, 228061295 is an apocalyptic number.

28061295 is a deficient number, since it is larger than the sum of its proper divisors (16903665).

28061295 is a wasteful number, since it uses less digits than its factorization.

28061295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 28061295 is about 5297.2912889514. The cubic root of 28061295 is about 303.8803163163.

The spelling of 28061295 in words is "twenty-eight million, sixty-one thousand, two hundred ninety-five".

Divisors: 1 3 5 15 1129 1657 3387 4971 5645 8285 16935 24855 1870753 5612259 9353765 28061295