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228292030 = 25192514787
BaseRepresentation
bin11011001101101…
…11010110111110
3120220120102210101
431212313112332
5431420321110
634353031314
75441310301
oct1546672676
9526512711
10228292030
111079571aa
126455553a
13383b1a55
1422468b38
151509713a
hexd9b75be

228292030 has 32 divisors (see below), whose sum is σ = 434367360. Its totient is φ = 86148000.

The previous prime is 228292021. The next prime is 228292033. The reversal of 228292030 is 30292822.

228292030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 228292030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228292033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45297 + ... + 50083.

It is an arithmetic number, because the mean of its divisors is an integer number (13573980).

Almost surely, 2228292030 is an apocalyptic number.

228292030 is a deficient number, since it is larger than the sum of its proper divisors (206075330).

228292030 is a wasteful number, since it uses less digits than its factorization.

228292030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5064.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 228292030 is about 15109.3358556887. The cubic root of 228292030 is about 611.1721884103.

The spelling of 228292030 in words is "two hundred twenty-eight million, two hundred ninety-two thousand, thirty".

Divisors: 1 2 5 10 19 38 95 190 251 502 1255 2510 4769 4787 9538 9574 23845 23935 47690 47870 90953 181906 454765 909530 1201537 2403074 6007685 12015370 22829203 45658406 114146015 228292030