Search a number
-
+
28836260 = 2256832111
BaseRepresentation
bin110111000000…
…0000110100100
32000021000220122
41232000012210
524340230020
62510021112
7500050505
oct156000644
960230818
1028836260
1115306122
1297a7798
135c8839b
143b88bac
1527e9125
hex1b801a4

28836260 has 24 divisors (see below), whose sum is σ = 60673536. Its totient is φ = 11512160.

The previous prime is 28836253. The next prime is 28836271. The reversal of 28836260 is 6263882.

It is a self number, because there is not a number n which added to its sum of digits gives 28836260.

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, 12605 + ... + 14715.

It is an arithmetic number, because the mean of its divisors is an integer number (2528064).

Almost surely, 228836260 is an apocalyptic number.

28836260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28836260 is an abundant number, since it is smaller than the sum of its proper divisors (31837276).

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

28836260 is a wasteful number, since it uses less digits than its factorization.

28836260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803 (or 2801 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 28836260 is about 5369.9404093528. The cubic root of 28836260 is about 306.6523596560.

The spelling of 28836260 in words is "twenty-eight million, eight hundred thirty-six thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 683 1366 2111 2732 3415 4222 6830 8444 10555 13660 21110 42220 1441813 2883626 5767252 7209065 14418130 28836260