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228243016 = 2353538309
BaseRepresentation
bin11011001101010…
…11011001001000
3120220110221120001
431212223121020
5431412234031
634352012344
75441014351
oct1546533110
9526427501
10228243016
111079233a1
12645310b4
1338395651
1422454d28
1515087861
hexd9ab648

228243016 has 16 divisors (see below), whose sum is σ = 436031100. Its totient is φ = 111968064.

The previous prime is 228243013. The next prime is 228243017. The reversal of 228243016 is 610342822.

228243016 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 217680516 + 10562500 = 14754^2 + 3250^2 .

It is not an unprimeable number, because it can be changed into a prime (228243013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268731 + ... + 269578.

Almost surely, 2228243016 is an apocalyptic number.

It is an amenable number.

228243016 is a deficient number, since it is larger than the sum of its proper divisors (207788084).

228243016 is a wasteful number, since it uses less digits than its factorization.

228243016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538368 (or 538364 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 228243016 is about 15107.7137913054. The cubic root of 228243016 is about 611.1284459901.

Adding to 228243016 its reverse (610342822), we get a palindrome (838585838).

The spelling of 228243016 in words is "two hundred twenty-eight million, two hundred forty-three thousand, sixteen".

Divisors: 1 2 4 8 53 106 212 424 538309 1076618 2153236 4306472 28530377 57060754 114121508 228243016