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228315282 = 23132225163
BaseRepresentation
bin11011001101111…
…01000010010010
3120220121121200120
431212331002102
5431422042112
634353331110
75441435136
oct1546750222
9526547616
10228315282
11107972718
1264566a96
13383bc500
14224733c6
151509de8c
hexd9bd092

228315282 has 24 divisors (see below), whose sum is σ = 494460144. Its totient is φ = 70250544.

The previous prime is 228315281. The next prime is 228315323. The reversal of 228315282 is 282513822.

228315282 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228315281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111568 + ... + 113595.

It is an arithmetic number, because the mean of its divisors is an integer number (20602506).

Almost surely, 2228315282 is an apocalyptic number.

228315282 is an abundant number, since it is smaller than the sum of its proper divisors (266144862).

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

228315282 is a wasteful number, since it uses less digits than its factorization.

228315282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225194 (or 225181 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 228315282 is about 15110.1052941401. The cubic root of 228315282 is about 611.1929374093.

The spelling of 228315282 in words is "two hundred twenty-eight million, three hundred fifteen thousand, two hundred eighty-two".

Divisors: 1 2 3 6 13 26 39 78 169 338 507 1014 225163 450326 675489 1350978 2927119 5854238 8781357 17562714 38052547 76105094 114157641 228315282