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228086229 = 37217107853
BaseRepresentation
bin11011001100001…
…01000111010101
3120220011222111010
431212011013111
5431342224404
634344402433
75436462300
oct1546050725
9526158433
10228086229
11107826618
1264476419
133833c187
1422413b37
1515056189
hexd9851d5

228086229 has 48 divisors (see below), whose sum is σ = 378520128. Its totient is φ = 121379328.

The previous prime is 228086227. The next prime is 228086249. The reversal of 228086229 is 922680822.

228086229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228086229 - 21 = 228086227 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228086227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 266967 + ... + 267819.

It is an arithmetic number, because the mean of its divisors is an integer number (7885836).

Almost surely, 2228086229 is an apocalyptic number.

It is an amenable number.

228086229 is a deficient number, since it is larger than the sum of its proper divisors (150433899).

228086229 is a wasteful number, since it uses less digits than its factorization.

228086229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 228086229 is about 15102.5239281386. The cubic root of 228086229 is about 610.9884797594.

The spelling of 228086229 in words is "two hundred twenty-eight million, eighty-six thousand, two hundred twenty-nine".

Divisors: 1 3 7 17 21 49 51 107 119 147 321 357 749 833 853 1819 2247 2499 2559 5243 5457 5971 12733 14501 15729 17913 38199 41797 43503 89131 91271 101507 125391 267393 273813 304521 638897 710549 1551607 1916691 2131647 4472279 4654821 10861249 13416837 32583747 76028743 228086229