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228046815 = 3255067707
BaseRepresentation
bin11011001011110…
…11011111011111
3120220002222102100
431211323133133
5431334444230
634343500143
75436236343
oct1545733737
9526088370
10228046815
111077a9a47
1264457653
1338327259
1422403623
1515049660
hexd97b7df

228046815 has 12 divisors (see below), whose sum is σ = 395281224. Its totient is φ = 121624944.

The previous prime is 228046783. The next prime is 228046829. The reversal of 228046815 is 518640822.

It is not a de Polignac number, because 228046815 - 25 = 228046783 is a prime.

It is a super-4 number, since 4×2280468154 (a number of 35 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228046815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2533809 + ... + 2533898.

It is an arithmetic number, because the mean of its divisors is an integer number (32940102).

Almost surely, 2228046815 is an apocalyptic number.

228046815 is a deficient number, since it is larger than the sum of its proper divisors (167234409).

228046815 is a wasteful number, since it uses less digits than its factorization.

228046815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5067718 (or 5067715 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 228046815 is about 15101.2189905319. The cubic root of 228046815 is about 610.9532841708.

The spelling of 228046815 in words is "two hundred twenty-eight million, forty-six thousand, eight hundred fifteen".

Divisors: 1 3 5 9 15 45 5067707 15203121 25338535 45609363 76015605 228046815