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228035321 = 194326491
BaseRepresentation
bin11011001011110…
…00101011111001
3120220002101122122
431211320223321
5431334112241
634343331025
75436161003
oct1545705371
9526071578
10228035321
111077a1348
1264450a75
1338321c57
14223dd373
151504604b
hexd978af9

228035321 has 12 divisors (see below), whose sum is σ = 245787120. Its totient is φ = 210976920.

The previous prime is 228035299. The next prime is 228035333. The reversal of 228035321 is 123530822.

It is not a de Polignac number, because 228035321 - 210 = 228034297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228035351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31886 + ... + 38376.

It is an arithmetic number, because the mean of its divisors is an integer number (20482260).

Almost surely, 2228035321 is an apocalyptic number.

It is an amenable number.

228035321 is a deficient number, since it is larger than the sum of its proper divisors (17751799).

228035321 is an equidigital number, since it uses as much as digits as its factorization.

228035321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596 (or 6553 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 228035321 is about 15100.8384204322. The cubic root of 228035321 is about 610.9430195898.

The spelling of 228035321 in words is "two hundred twenty-eight million, thirty-five thousand, three hundred twenty-one".

Divisors: 1 19 43 817 1849 6491 35131 123329 279113 5303147 12001859 228035321