Search a number
-
+
228480768 = 2832131757
BaseRepresentation
bin11011001111001…
…01011100000000
3120220221000200200
431213211130000
5431442341033
634401045200
75443024455
oct1547453400
9526830620
10228480768
11107a75a8a
1264626800
1338449929
14224b782c
15150d3013
hexd9e5700

228480768 has 108 divisors (see below), whose sum is σ = 664672008. Its totient is φ = 75479040.

The previous prime is 228480767. The next prime is 228480793. The reversal of 228480768 is 867084822.

It is a happy number.

It is a super-2 number, since 2×2284807682 = 104406922691739648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228480767) 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 11 ways as a sum of consecutive naturals, for example, 301446 + ... + 302202.

Almost surely, 2228480768 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 228480768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332336004).

228480768 is an abundant number, since it is smaller than the sum of its proper divisors (436191240).

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

228480768 is a wasteful number, since it uses less digits than its factorization.

228480768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 228480768 is about 15115.5803064256. The cubic root of 228480768 is about 611.3405687119.

The spelling of 228480768 in words is "two hundred twenty-eight million, four hundred eighty thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 131 144 192 256 262 288 384 393 524 576 757 768 786 1048 1152 1179 1514 1572 2096 2271 2304 2358 3028 3144 4192 4542 4716 6056 6288 6813 8384 9084 9432 12112 12576 13626 16768 18168 18864 24224 25152 27252 33536 36336 37728 48448 50304 54504 72672 75456 96896 99167 100608 109008 145344 150912 193792 198334 218016 290688 297501 301824 396668 436032 581376 595002 793336 872064 892503 1190004 1586672 1744128 1785006 2380008 3173344 3570012 4760016 6346688 7140024 9520032 12693376 14280048 19040064 25386752 28560096 38080128 57120192 76160256 114240384 228480768