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228481335 = 32547591831
BaseRepresentation
bin11011001111001…
…01100100110111
3120220221001110200
431213211210313
5431442400320
634401051543
75443026225
oct1547454467
9526831420
10228481335
11107a76455
1264626bb3
1338449c74
14224b7b15
15150d3290
hexd9e5937

228481335 has 48 divisors (see below), whose sum is σ = 411540480. Its totient is φ = 117178560.

The previous prime is 228481303. The next prime is 228481369. The reversal of 228481335 is 533184822.

It is not a de Polignac number, because 228481335 - 25 = 228481303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228481335.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123870 + ... + 125700.

It is an arithmetic number, because the mean of its divisors is an integer number (8573760).

Almost surely, 2228481335 is an apocalyptic number.

228481335 is a deficient number, since it is larger than the sum of its proper divisors (183059145).

228481335 is a wasteful number, since it uses less digits than its factorization.

228481335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948 (or 1945 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 228481335 is about 15115.5990618963. The cubic root of 228481335 is about 611.3410744143.

The spelling of 228481335 in words is "two hundred twenty-eight million, four hundred eighty-one thousand, three hundred thirty-five".

Divisors: 1 3 5 9 15 45 47 59 141 177 235 295 423 531 705 885 1831 2115 2655 2773 5493 8319 9155 13865 16479 24957 27465 41595 82395 86057 108029 124785 258171 324087 430285 540145 774513 972261 1290855 1620435 3872565 4861305 5077363 15232089 25386815 45696267 76160445 228481335