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228182166 = 23243294809
BaseRepresentation
bin11011001100111…
…00100010010110
3120220100212002100
431212130202112
5431403312131
634350422530
75440342062
oct1546344226
9526325070
10228182166
11107891703
1264501a46
1338373a44
142243aaa2
15150747e6
hexd99c896

228182166 has 24 divisors (see below), whose sum is σ = 505893960. Its totient is φ = 74291616.

The previous prime is 228182147. The next prime is 228182203. The reversal of 228182166 is 661281822.

228182166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 228182166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146631 + ... + 148178.

It is an arithmetic number, because the mean of its divisors is an integer number (21078915).

Almost surely, 2228182166 is an apocalyptic number.

228182166 is an abundant number, since it is smaller than the sum of its proper divisors (277711794).

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

228182166 is a wasteful number, since it uses less digits than its factorization.

228182166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294860 (or 294857 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 228182166 is about 15105.6997851804. The cubic root of 228182166 is about 611.0741318475.

The spelling of 228182166 in words is "two hundred twenty-eight million, one hundred eighty-two thousand, one hundred sixty-six".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 294809 589618 884427 1768854 2653281 5306562 12676787 25353574 38030361 76060722 114091083 228182166