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228016473 = 31929137941
BaseRepresentation
bin11011001011101…
…00000101011001
3120220001102210120
431211310011121
5431333011343
634343103453
75436052026
oct1545640531
9526042716
10228016473
11107789173
1264441b89
13383164b9
14223d654d
1515040683
hexd974159

228016473 has 16 divisors (see below), whose sum is σ = 331060800. Its totient is φ = 139043520.

The previous prime is 228016447. The next prime is 228016483. The reversal of 228016473 is 374610822.

228016473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228016473 - 210 = 228015449 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228016433) 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, 67318 + ... + 70623.

It is an arithmetic number, because the mean of its divisors is an integer number (20691300).

Almost surely, 2228016473 is an apocalyptic number.

It is an amenable number.

228016473 is a deficient number, since it is larger than the sum of its proper divisors (103044327).

228016473 is a wasteful number, since it uses less digits than its factorization.

228016473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137992.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 228016473 is about 15100.2143362272. The cubic root of 228016473 is about 610.9261868593.

The spelling of 228016473 in words is "two hundred twenty-eight million, sixteen thousand, four hundred seventy-three".

Divisors: 1 3 19 29 57 87 551 1653 137941 413823 2620879 4000289 7862637 12000867 76005491 228016473