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228007726 = 21091045907
BaseRepresentation
bin11011001011100…
…01111100101110
3120220000222210121
431211301330232
5431332221401
634342555154
75436014362
oct1545617456
9526028717
10228007726
11107782641
1264438aba
133831251b
14223d32a2
151503cca1
hexd971f2e

228007726 has 8 divisors (see below), whose sum is σ = 345149640. Its totient is φ = 112957848.

The previous prime is 228007711. The next prime is 228007777. The reversal of 228007726 is 627700822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 228007691 and 228007700.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 522736 + ... + 523171.

It is an arithmetic number, because the mean of its divisors is an integer number (43143705).

Almost surely, 2228007726 is an apocalyptic number.

228007726 is a deficient number, since it is larger than the sum of its proper divisors (117141914).

228007726 is a wasteful number, since it uses less digits than its factorization.

228007726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046018.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 228007726 is about 15099.9247017990. The cubic root of 228007726 is about 610.9183747926.

The spelling of 228007726 in words is "two hundred twenty-eight million, seven thousand, seven hundred twenty-six".

Divisors: 1 2 109 218 1045907 2091814 114003863 228007726