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228356252 = 22269212227
BaseRepresentation
bin11011001110001…
…11000010011100
3120220200200212222
431213013002130
5431424400002
634354244512
75441665445
oct1547070234
9526620788
10228356252
111079a0483
1264586738
1338405057
14224842cc
15150ab1a2
hexd9c709c

228356252 has 12 divisors (see below), whose sum is σ = 401110920. Its totient is φ = 113753136.

The previous prime is 228356251. The next prime is 228356263. The reversal of 228356252 is 252653822.

228356252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228356251) 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, 105038 + ... + 107189.

It is an arithmetic number, because the mean of its divisors is an integer number (33425910).

Almost surely, 2228356252 is an apocalyptic number.

It is an amenable number.

228356252 is a deficient number, since it is larger than the sum of its proper divisors (172754668).

228356252 is a wasteful number, since it uses less digits than its factorization.

228356252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212500 (or 212498 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 228356252 is about 15111.4609485648. The cubic root of 228356252 is about 611.2294936964.

The spelling of 228356252 in words is "two hundred twenty-eight million, three hundred fifty-six thousand, two hundred fifty-two".

Divisors: 1 2 4 269 538 1076 212227 424454 848908 57089063 114178126 228356252