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28368852 = 22317592357
BaseRepresentation
bin110110000110…
…1111111010100
31222101021202020
41230031333110
524230300402
62452013140
7463063011
oct154157724
958337666
1028368852
1115016a36
1296011b0
135b53705
143aa6708
1527558bc
hex1b0dfd4

28368852 has 48 divisors (see below), whose sum is σ = 71305920. Its totient is φ = 8745472.

The previous prime is 28368841. The next prime is 28368853. The reversal of 28368852 is 25886382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28368853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10858 + ... + 13214.

It is an arithmetic number, because the mean of its divisors is an integer number (1485540).

Almost surely, 228368852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28368852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35652960).

28368852 is an abundant number, since it is smaller than the sum of its proper divisors (42937068).

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

28368852 is a wasteful number, since it uses less digits than its factorization.

28368852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440 (or 2438 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 28368852 is about 5326.2418270296. The cubic root of 28368852 is about 304.9864797375.

The spelling of 28368852 in words is "twenty-eight million, three hundred sixty-eight thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 17 34 51 59 68 102 118 177 204 236 354 708 1003 2006 2357 3009 4012 4714 6018 7071 9428 12036 14142 28284 40069 80138 120207 139063 160276 240414 278126 417189 480828 556252 834378 1668756 2364071 4728142 7092213 9456284 14184426 28368852