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228855051 = 343191141
BaseRepresentation
bin11011010010000…
…00110100001011
3120221122001010000
431221000310023
5432041330201
634413054043
75446143615
oct1551006413
9527561100
10228855051
11108201207
1264787323
133854b0b9
1422573db5
1515158d86
hexda40d0b

228855051 has 20 divisors (see below), whose sum is σ = 352901824. Its totient is φ = 147646800.

The previous prime is 228855013. The next prime is 228855059. The reversal of 228855051 is 150558822.

228855051 is a `hidden beast` number, since 22 + 88 + 550 + 5 + 1 = 666.

It is not a de Polignac number, because 228855051 - 211 = 228853003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228854997 and 228855015.

It is not an unprimeable number, because it can be changed into a prime (228855059) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43060 + ... + 48081.

Almost surely, 2228855051 is an apocalyptic number.

228855051 is a deficient number, since it is larger than the sum of its proper divisors (124046773).

228855051 is an equidigital number, since it uses as much as digits as its factorization.

228855051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91184 (or 91175 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 228855051 is about 15127.9559425588. The cubic root of 228855051 is about 611.6742066434.

The spelling of 228855051 in words is "two hundred twenty-eight million, eight hundred fifty-five thousand, fifty-one".

Divisors: 1 3 9 27 31 81 93 279 837 2511 91141 273423 820269 2460807 2825371 7382421 8476113 25428339 76285017 228855051