Search a number
-
+
288148224 = 28372131931
BaseRepresentation
bin10001001011001…
…100101100000000
3202002012110001110
4101023030230000
51042231220344
644332003320
710066135200
oct2113145400
9662173043
10288148224
1113871a031
1280600540
134790b410
142a3aa400
151a46c3b9
hex112ccb00

288148224 has 432 divisors, whose sum is σ = 1043911680. Its totient is φ = 69672960.

The previous prime is 288148187. The next prime is 288148229. The reversal of 288148224 is 422841882.

It is a Harshad number since it is a multiple of its sum of digits (39).

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

It is not an unprimeable number, because it can be changed into a prime (288148229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9295089 + ... + 9295119.

Almost surely, 2288148224 is an apocalyptic number.

288148224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288148224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521955840).

288148224 is an abundant number, since it is smaller than the sum of its proper divisors (755763456).

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

288148224 is a wasteful number, since it uses less digits than its factorization.

288148224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 75 counting only the distinct ones).

The product of its digits is 65536, while the sum is 39.

The square root of 288148224 is about 16974.9292782032. The cubic root of 288148224 is about 660.4987231412.

The spelling of 288148224 in words is "two hundred eighty-eight million, one hundred forty-eight thousand, two hundred twenty-four".