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228880806 = 23711495413
BaseRepresentation
bin11011010010001…
…11000110100110
3120221200100102220
431221013012212
5432043141211
634413413210
75446311660
oct1551070646
9527610386
10228880806
111082195a0
126479a206
1338559a3b
142257d530
1515161806
hexda471a6

228880806 has 32 divisors (see below), whose sum is σ = 570716928. Its totient is φ = 59449440.

The previous prime is 228880727. The next prime is 228880829. The reversal of 228880806 is 608088822.

228880806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247245 + ... + 248168.

It is an arithmetic number, because the mean of its divisors is an integer number (17834904).

Almost surely, 2228880806 is an apocalyptic number.

228880806 is an abundant number, since it is smaller than the sum of its proper divisors (341836122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228880806 is a wasteful number, since it uses less digits than its factorization.

228880806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495436.

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 228880806 is about 15128.8071572084. The cubic root of 228880806 is about 611.6971514116.

The spelling of 228880806 in words is "two hundred twenty-eight million, eight hundred eighty thousand, eight hundred six".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 495413 990826 1486239 2972478 3467891 5449543 6935782 10403673 10899086 16348629 20807346 32697258 38146801 76293602 114440403 228880806