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228874666 = 21376831223
BaseRepresentation
bin11011010010001…
…01100110101010
3120221200001000111
431221011212222
5432042442131
634413324534
75446255036
oct1551054652
9527601014
10228874666
11108214a19
126479674a
1338556cc7
142257b1c6
151515eab1
hexda459aa

228874666 has 16 divisors (see below), whose sum is σ = 346607424. Its totient is φ = 113342944.

The previous prime is 228874663. The next prime is 228874673. The reversal of 228874666 is 666478822.

228874666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2288746662 = 104767225473223112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228874661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186531 + ... + 187753.

It is an arithmetic number, because the mean of its divisors is an integer number (21662964).

Almost surely, 2228874666 is an apocalyptic number.

228874666 is a deficient number, since it is larger than the sum of its proper divisors (117732758).

228874666 is a wasteful number, since it uses less digits than its factorization.

228874666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045.

The product of its digits is 1548288, while the sum is 49.

The square root of 228874666 is about 15128.6042317195. The cubic root of 228874666 is about 611.6916815280.

The spelling of 228874666 in words is "two hundred twenty-eight million, eight hundred seventy-four thousand, six hundred sixty-six".

Divisors: 1 2 137 274 683 1223 1366 2446 93571 167551 187142 335102 835309 1670618 114437333 228874666