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228837065 = 5971992371
BaseRepresentation
bin11011010001111…
…00011011001001
3120221121010102212
431220330123021
5432040241230
634412434505
75446040312
oct1550743311
9527533385
10228837065
11108199746
1264778a35
1338542b62
142256b609
1515153895
hexda3c6c9

228837065 has 16 divisors (see below), whose sum is σ = 278947200. Its totient is φ = 180195840.

The previous prime is 228837061. The next prime is 228837073. The reversal of 228837065 is 560738822.

It is not a de Polignac number, because 228837065 - 22 = 228837061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228837061) 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, 95330 + ... + 97700.

It is an arithmetic number, because the mean of its divisors is an integer number (17434200).

Almost surely, 2228837065 is an apocalyptic number.

It is an amenable number.

228837065 is a deficient number, since it is larger than the sum of its proper divisors (50110135).

228837065 is a wasteful number, since it uses less digits than its factorization.

228837065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 228837065 is about 15127.3614685443. The cubic root of 228837065 is about 611.6581821475.

The spelling of 228837065 in words is "two hundred twenty-eight million, eight hundred thirty-seven thousand, sixty-five".

Divisors: 1 5 97 199 485 995 2371 11855 19303 96515 229987 471829 1149935 2359145 45767413 228837065