Search a number
-
+
28097695 = 510155639
BaseRepresentation
bin110101100101…
…1110010011111
31221212111210101
41223023302133
524143111240
62442121531
7460553323
oct153136237
957774711
1028097695
111495123a
1294b02a7
135a8a172
143a35983
15270039a
hex1acbc9f

28097695 has 8 divisors (see below), whose sum is σ = 34051680. Its totient is φ = 22255200.

The previous prime is 28097683. The next prime is 28097701. The reversal of 28097695 is 59679082.

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

It is not a de Polignac number, because 28097695 - 29 = 28097183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27315 + ... + 28324.

It is an arithmetic number, because the mean of its divisors is an integer number (4256460).

Almost surely, 228097695 is an apocalyptic number.

28097695 is a deficient number, since it is larger than the sum of its proper divisors (5953985).

28097695 is a wasteful number, since it uses less digits than its factorization.

28097695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55745.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 28097695 is about 5300.7258936866. The cubic root of 28097695 is about 304.0116533795.

The spelling of 28097695 in words is "twenty-eight million, ninety-seven thousand, six hundred ninety-five".

Divisors: 1 5 101 505 55639 278195 5619539 28097695