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228839208 = 23313733459
BaseRepresentation
bin11011010001111…
…00111100101000
3120221121020101020
431220330330220
5432040323313
634412452440
75446046463
oct1550747450
9527536336
10228839208
111081a0314
126477a120
1338543b20
142256c2da
1515154323
hexda3cf28

228839208 has 32 divisors (see below), whose sum is σ = 616106400. Its totient is φ = 70411968.

The previous prime is 228839189. The next prime is 228839239. The reversal of 228839208 is 802938822.

228839208 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2288392083 (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228839208.

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, 366418 + ... + 367041.

It is an arithmetic number, because the mean of its divisors is an integer number (19253325).

Almost surely, 2228839208 is an apocalyptic number.

It is an amenable number.

228839208 is an abundant number, since it is smaller than the sum of its proper divisors (387267192).

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

228839208 is a wasteful number, since it uses less digits than its factorization.

228839208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733481 (or 733477 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 228839208 is about 15127.4323002947. The cubic root of 228839208 is about 611.6600914818.

The spelling of 228839208 in words is "two hundred twenty-eight million, eight hundred thirty-nine thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 733459 1466918 2200377 2933836 4400754 5867672 8801508 9534967 17603016 19069934 28604901 38139868 57209802 76279736 114419604 228839208