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228068911 = 753614741
BaseRepresentation
bin11011001100000…
…00111000101111
3120220011002201201
431212000320233
5431341201121
634344150331
75436360640
oct1546007057
9526132651
10228068911
11107814604
12644683a7
1338334325
142240b6c7
1515050e91
hexd980e2f

228068911 has 8 divisors (see below), whose sum is σ = 265568544. Its totient is φ = 191798880.

The previous prime is 228068903. The next prime is 228068927. The reversal of 228068911 is 119860822.

228068911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228068911 - 23 = 228068903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228068941) 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, 307000 + ... + 307741.

It is an arithmetic number, because the mean of its divisors is an integer number (33196068).

Almost surely, 2228068911 is an apocalyptic number.

228068911 is a deficient number, since it is larger than the sum of its proper divisors (37499633).

228068911 is an equidigital number, since it uses as much as digits as its factorization.

228068911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614801.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 228068911 is about 15101.9505693801. The cubic root of 228068911 is about 610.9730157740.

The spelling of 228068911 in words is "two hundred twenty-eight million, sixty-eight thousand, nine hundred eleven".

Divisors: 1 7 53 371 614741 4303187 32581273 228068911