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228120006 = 2371952879
BaseRepresentation
bin11011001100011…
…01010111000110
3120220020200211010
431212031113012
5431344320011
634345223050
75436662622
oct1546152706
9526220733
10228120006
11107849a34
1264491a86
133835166a
1422422182
15150611a6
hexd98d5c6

228120006 has 16 divisors (see below), whose sum is σ = 456883200. Its totient is φ = 75932808.

The previous prime is 228120001. The next prime is 228120007. The reversal of 228120006 is 600021822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228120001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22126 + ... + 30753.

It is an arithmetic number, because the mean of its divisors is an integer number (28555200).

Almost surely, 2228120006 is an apocalyptic number.

228120006 is an abundant number, since it is smaller than the sum of its proper divisors (228763194).

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

228120006 is a wasteful number, since it uses less digits than its factorization.

228120006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53603.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 228120006 is about 15103.6421435361. The cubic root of 228120006 is about 611.0186384400.

Adding to 228120006 its reverse (600021822), we get a palindrome (828141828).

The spelling of 228120006 in words is "two hundred twenty-eight million, one hundred twenty thousand, six".

Divisors: 1 2 3 6 719 1438 2157 4314 52879 105758 158637 317274 38020001 76040002 114060003 228120006