Search a number
-
+
228650205 = 3574674663
BaseRepresentation
bin11011010000011…
…10110011011101
3120221020122010010
431220032303131
5432013301310
634404433433
75444331450
oct1550166335
9527218103
10228650205
11108081313
12646a8879
13384a8aa4
142251d497
1515118320
hexda0ecdd

228650205 has 32 divisors (see below), whose sum is σ = 419088384. Its totient is φ = 104279616.

The previous prime is 228650197. The next prime is 228650209. The reversal of 228650205 is 502056822.

It is not a de Polignac number, because 228650205 - 23 = 228650197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228650209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46704 + ... + 51366.

It is an arithmetic number, because the mean of its divisors is an integer number (13096512).

Almost surely, 2228650205 is an apocalyptic number.

It is an amenable number.

228650205 is a deficient number, since it is larger than the sum of its proper divisors (190438179).

228650205 is a wasteful number, since it uses less digits than its factorization.

228650205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5145.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 228650205 is about 15121.1839814216. The cubic root of 228650205 is about 611.4916508914.

The spelling of 228650205 in words is "two hundred twenty-eight million, six hundred fifty thousand, two hundred five".

Divisors: 1 3 5 7 15 21 35 105 467 1401 2335 3269 4663 7005 9807 13989 16345 23315 32641 49035 69945 97923 163205 489615 2177621 6532863 10888105 15243347 32664315 45730041 76216735 228650205