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228956808 = 2339539867
BaseRepresentation
bin11011010010110…
…01101010001000
3120221211012200210
431221121222020
5432103104213
634415201120
75450046363
oct1551315210
9527735623
10228956808
11108270703
12648161a0
1338585502
142259d0da
15151790c3
hexda59a88

228956808 has 16 divisors (see below), whose sum is σ = 572392080. Its totient is φ = 76318928.

The previous prime is 228956807. The next prime is 228956831. The reversal of 228956808 is 808659822.

It is not an unprimeable number, because it can be changed into a prime (228956801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4769910 + ... + 4769957.

It is an arithmetic number, because the mean of its divisors is an integer number (35774505).

Almost surely, 2228956808 is an apocalyptic number.

It is an amenable number.

228956808 is an abundant number, since it is smaller than the sum of its proper divisors (343435272).

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

228956808 is a wasteful number, since it uses less digits than its factorization.

228956808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9539876 (or 9539872 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 228956808 is about 15131.3187792737. The cubic root of 228956808 is about 611.7648504945.

It can be divided in two parts, 228 and 956808, that added together give a triangular number (957036 = T1383).

The spelling of 228956808 in words is "two hundred twenty-eight million, nine hundred fifty-six thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 24 9539867 19079734 28619601 38159468 57239202 76318936 114478404 228956808