Search a number
-
+
28746168 = 23311108887
BaseRepresentation
bin110110110101…
…0000110111000
32000002110022220
41231222012320
524324334133
62504044040
7466224033
oct155520670
960073286
1028746168
1115254470
129763620
135c56389
143b6401a
1527cc5b3
hex1b6a1b8

28746168 has 32 divisors (see below), whose sum is σ = 78399360. Its totient is φ = 8710880.

The previous prime is 28746161. The next prime is 28746181. The reversal of 28746168 is 86164782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28746161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54180 + ... + 54707.

It is an arithmetic number, because the mean of its divisors is an integer number (2449980).

Almost surely, 228746168 is an apocalyptic number.

It is an amenable number.

28746168 is an abundant number, since it is smaller than the sum of its proper divisors (49653192).

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

28746168 is a wasteful number, since it uses less digits than its factorization.

28746168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108907 (or 108903 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 28746168 is about 5361.5452996314. The cubic root of 28746168 is about 306.3326725021.

The spelling of 28746168 in words is "twenty-eight million, seven hundred forty-six thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 108887 217774 326661 435548 653322 871096 1197757 1306644 2395514 2613288 3593271 4791028 7186542 9582056 14373084 28746168