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228508080 = 2435952117
BaseRepresentation
bin11011001111011…
…00000110110000
3120220222102011020
431213230012300
5431444224310
634401415440
75443200213
oct1547540660
9526872136
10228508080
11107a94559
126463a580
13384591a8
14224c377a
15150db170
hexd9ec1b0

228508080 has 40 divisors (see below), whose sum is σ = 708375792. Its totient is φ = 60935424.

The previous prime is 228508061. The next prime is 228508153. The reversal of 228508080 is 80805822.

228508080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475819 + ... + 476298.

Almost surely, 2228508080 is an apocalyptic number.

228508080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228508080 is an abundant number, since it is smaller than the sum of its proper divisors (479867712).

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

228508080 is a wasteful number, since it uses less digits than its factorization.

228508080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952133 (or 952127 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 228508080 is about 15116.4837181138. The cubic root of 228508080 is about 611.3649270981.

The spelling of 228508080 in words is "two hundred twenty-eight million, five hundred eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 952117 1904234 2856351 3808468 4760585 5712702 7616936 9521170 11425404 14281755 15233872 19042340 22850808 28563510 38084680 45701616 57127020 76169360 114254040 228508080