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228068163 = 3339721277
BaseRepresentation
bin11011001100000…
…00101101000011
3120220011001201000
431212000231003
5431341140123
634344143043
75436355521
oct1546005503
9526131630
10228068163
11107813a94
1264467a83
1338333b9b
142240b311
1515050b43
hexd980b43

228068163 has 16 divisors (see below), whose sum is σ = 338745760. Its totient is φ = 151655328.

The previous prime is 228068143. The next prime is 228068171. The reversal of 228068163 is 361860822.

It is not a de Polignac number, because 228068163 - 25 = 228068131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228068123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81 + ... + 21357.

It is an arithmetic number, because the mean of its divisors is an integer number (21171610).

Almost surely, 2228068163 is an apocalyptic number.

228068163 is a deficient number, since it is larger than the sum of its proper divisors (110677597).

228068163 is a wasteful number, since it uses less digits than its factorization.

228068163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21683 (or 21677 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 228068163 is about 15101.9258043469. The cubic root of 228068163 is about 610.9723478351.

The spelling of 228068163 in words is "two hundred twenty-eight million, sixty-eight thousand, one hundred sixty-three".

Divisors: 1 3 9 27 397 1191 3573 10719 21277 63831 191493 574479 8446969 25340907 76022721 228068163