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228152244 = 22319012687
BaseRepresentation
bin11011001100101…
…01001110110100
3120220022100001010
431212111032310
5431401332434
634350032220
75440155615
oct1546251664
9526270033
10228152244
11107871181
12644a8670
1338363238
142242dc0c
151506a9e9
hexd9953b4

228152244 has 12 divisors (see below), whose sum is σ = 532355264. Its totient is φ = 76050744.

The previous prime is 228152231. The next prime is 228152263. The reversal of 228152244 is 442251822.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9506332 + ... + 9506355.

Almost surely, 2228152244 is an apocalyptic number.

It is an amenable number.

228152244 is an abundant number, since it is smaller than the sum of its proper divisors (304203020).

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

228152244 is a wasteful number, since it uses less digits than its factorization.

228152244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19012694 (or 19012692 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 228152244 is about 15104.7093318607. The cubic root of 228152244 is about 611.0474202077.

The spelling of 228152244 in words is "two hundred twenty-eight million, one hundred fifty-two thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 19012687 38025374 57038061 76050748 114076122 228152244