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229105829 = 2329389883
BaseRepresentation
bin11011010011111…
…10000010100101
3120222002210010002
431221332002211
5432122341304
634422311045
75451240011
oct1551760245
9528083102
10229105829
11108362667
1264888485
13386082a4
14225db541
15151a831e
hexda7e0a5

229105829 has 16 divisors (see below), whose sum is σ = 248227200. Its totient is φ = 210805056.

The previous prime is 229105817. The next prime is 229105831. The reversal of 229105829 is 928501922.

It is a cyclic number.

It is not a de Polignac number, because 229105829 - 28 = 229105573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 229105792 and 229105801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229107829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259022 + ... + 259904.

It is an arithmetic number, because the mean of its divisors is an integer number (15514200).

Almost surely, 2229105829 is an apocalyptic number.

229105829 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

229105829 is a deficient number, since it is larger than the sum of its proper divisors (19121371).

229105829 is a wasteful number, since it uses less digits than its factorization.

229105829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 229105829 is about 15136.2422351124. The cubic root of 229105829 is about 611.8975480671.

The spelling of 229105829 in words is "two hundred twenty-nine million, one hundred five thousand, eight hundred twenty-nine".

Divisors: 1 23 29 389 667 883 8947 11281 20309 25607 259463 343487 588961 7900201 9961123 229105829