Search a number
-
+
28868202 = 23211145799
BaseRepresentation
bin110111000011…
…1111001101010
32000022122201200
41232013321222
524342240302
62510425030
7500242566
oct156077152
960278650
1028868202
1115328120
129802176
135c99a9c
143b966a6
15280381c
hex1b87e6a

28868202 has 24 divisors (see below), whose sum is σ = 68234400. Its totient is φ = 8747880.

The previous prime is 28868173. The next prime is 28868207. The reversal of 28868202 is 20286882.

It is not an unprimeable number, because it can be changed into a prime (28868207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72702 + ... + 73097.

It is an arithmetic number, because the mean of its divisors is an integer number (2843100).

Almost surely, 228868202 is an apocalyptic number.

28868202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28868202 is an abundant number, since it is smaller than the sum of its proper divisors (39366198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28868202 is a wasteful number, since it uses less digits than its factorization.

28868202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145818 (or 145815 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 28868202 is about 5372.9137346509. The cubic root of 28868202 is about 306.7655444127.

The spelling of 28868202 in words is "twenty-eight million, eight hundred sixty-eight thousand, two hundred two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 145799 291598 437397 874794 1312191 1603789 2624382 3207578 4811367 9622734 14434101 28868202