Search a number
-
+
28366848 = 2113619
BaseRepresentation
bin110110000110…
…1100000000000
31222101012000000
41230031200000
524230214343
62452000000
7463054116
oct154154000
958335000
1028366848
1115015484
129600000
135b52823
143aa5ab6
152754ed3
hex1b0d800

28366848 has 168 divisors, whose sum is σ = 89516700. Its totient is φ = 8957952.

The previous prime is 28366831. The next prime is 28366883. The reversal of 28366848 is 84866382.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (442368) is a multiple of the sum of its prime divisors (24).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1492983 + ... + 1493001.

Almost surely, 228366848 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 28366848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44758350).

28366848 is an abundant number, since it is smaller than the sum of its proper divisors (61149852).

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

28366848 is an frugal number, since it uses more digits than its factorization.

28366848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 24 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 28366848 is about 5326.0536985652. The cubic root of 28366848 is about 304.9792980664.

The spelling of 28366848 in words is "twenty-eight million, three hundred sixty-six thousand, eight hundred forty-eight".