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228807588 = 22323829013
BaseRepresentation
bin11011010001101…
…01001110100100
3120221112122000010
431220311032210
5432033320323
634412050220
75445555342
oct1550651644
9527478003
10228807588
11108179589
1264763970
1338532609
1422560992
1515149c93
hexda353a4

228807588 has 24 divisors (see below), whose sum is σ = 557097408. Its totient is φ = 72953056.

The previous prime is 228807583. The next prime is 228807629. The reversal of 228807588 is 885708822.

It is a happy number.

228807588 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228807583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414231 + ... + 414782.

It is an arithmetic number, because the mean of its divisors is an integer number (23212392).

Almost surely, 2228807588 is an apocalyptic number.

It is an amenable number.

228807588 is an abundant number, since it is smaller than the sum of its proper divisors (328289820).

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

228807588 is a wasteful number, since it uses less digits than its factorization.

228807588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829043 (or 829041 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 48.

The square root of 228807588 is about 15126.3871430028. The cubic root of 228807588 is about 611.6319180128.

The spelling of 228807588 in words is "two hundred twenty-eight million, eight hundred seven thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 829013 1658026 2487039 3316052 4974078 9948156 19067299 38134598 57201897 76269196 114403794 228807588