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228065727 = 31717325849
BaseRepresentation
bin11011001100000…
…00000110111111
3120220010221100210
431212000012333
5431341100402
634344123503
75436345441
oct1546000677
9526127323
10228065727
1110781217a
1264466593
1338332a46
142240a491
151505006c
hexd9801bf

228065727 has 16 divisors (see below), whose sum is σ = 323848800. Its totient is φ = 142267392.

The previous prime is 228065707. The next prime is 228065737. The reversal of 228065727 is 727560822.

228065727 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 228065727 - 210 = 228064703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228065707) 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, 4102 + ... + 21747.

It is an arithmetic number, because the mean of its divisors is an integer number (20240550).

Almost surely, 2228065727 is an apocalyptic number.

228065727 is a deficient number, since it is larger than the sum of its proper divisors (95783073).

228065727 is a wasteful number, since it uses less digits than its factorization.

228065727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26042.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 228065727 is about 15101.8451521660. The cubic root of 228065727 is about 610.9701725586.

The spelling of 228065727 in words is "two hundred twenty-eight million, sixty-five thousand, seven hundred twenty-seven".

Divisors: 1 3 17 51 173 519 2941 8823 25849 77547 439433 1318299 4471877 13415631 76021909 228065727