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228448408 = 2379361469
BaseRepresentation
bin11011001110111…
…01100010011000
3120220212101022011
431213131202120
5431440322113
634400235304
75442531226
oct1547354230
9526771264
10228448408
11107a53741
126460bb34
1338437c96
14224a9b16
15150c863d
hexd9dd898

228448408 has 16 divisors (see below), whose sum is σ = 433764000. Its totient is φ = 112778016.

The previous prime is 228448387. The next prime is 228448421. The reversal of 228448408 is 804844822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180103 + ... + 181366.

It is an arithmetic number, because the mean of its divisors is an integer number (27110250).

Almost surely, 2228448408 is an apocalyptic number.

It is an amenable number.

228448408 is a deficient number, since it is larger than the sum of its proper divisors (205315592).

228448408 is a wasteful number, since it uses less digits than its factorization.

228448408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361554 (or 361550 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The square root of 228448408 is about 15114.5098498099. The cubic root of 228448408 is about 611.3117057212.

The spelling of 228448408 in words is "two hundred twenty-eight million, four hundred forty-eight thousand, four hundred eight".

Divisors: 1 2 4 8 79 158 316 632 361469 722938 1445876 2891752 28556051 57112102 114224204 228448408