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228647563848 = 23321124721092
BaseRepresentation
bin1101010011110001110…
…1001111001001001000
3210212011211201201020200
43110330131033021020
512221232234020343
6253012250452200
722343046140214
oct3247435171110
9725154651220
10228647563848
1188a72652a00
1238391734060
131873b44a0a2
14b0d0a79944
155e334a14d3
hex353c74f248

228647563848 has 324 divisors, whose sum is σ = 701896722345. Its totient is φ = 67190808960.

The previous prime is 228647563841. The next prime is 228647563853. The reversal of 228647563848 is 848365746822.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

228647563848 is a `hidden beast` number, since 2 + 2 + 8 + 64 + 7 + 563 + 8 + 4 + 8 = 666.

228647563848 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 219400433604 + 9247130244 = 468402^2 + 96162^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=338118.

It is not an unprimeable number, because it can be changed into a prime (228647563841) 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 80 ways as a sum of consecutive naturals, for example, 2097684018 + ... + 2097684126.

Almost surely, 2228647563848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228647563848

228647563848 is an abundant number, since it is smaller than the sum of its proper divisors (473249158497).

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

228647563848 is a wasteful number, since it uses less digits than its factorization.

228647563848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 172 counting only the distinct ones).

The product of its digits is 123863040, while the sum is 63.

The spelling of 228647563848 in words is "two hundred twenty-eight billion, six hundred forty-seven million, five hundred sixty-three thousand, eight hundred forty-eight".