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216225006 = 23172299257
BaseRepresentation
bin11001110001101…
…01010011101110
3120001212100221120
430320311103232
5420323200011
633242241410
75233611414
oct1470652356
9501770846
10216225006
11101065058
12604b6266
1335a483ba
1420a072b4
1513eb1a06
hexce354ee

216225006 has 32 divisors (see below), whose sum is σ = 459937440. Its totient is φ = 67531776.

The previous prime is 216224977. The next prime is 216225011. The reversal of 216225006 is 600522612.

216225006 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18730 + ... + 27986.

It is an arithmetic number, because the mean of its divisors is an integer number (14373045).

Almost surely, 2216225006 is an apocalyptic number.

216225006 is an abundant number, since it is smaller than the sum of its proper divisors (243712434).

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

216225006 is a wasteful number, since it uses less digits than its factorization.

216225006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9508.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 216225006 is about 14704.5913238009. The cubic root of 216225006 is about 600.2082665889.

Adding to 216225006 its reverse (600522612), we get a palindrome (816747618).

The spelling of 216225006 in words is "two hundred sixteen million, two hundred twenty-five thousand, six".

Divisors: 1 2 3 6 17 34 51 102 229 458 687 1374 3893 7786 9257 11679 18514 23358 27771 55542 157369 314738 472107 944214 2119853 4239706 6359559 12719118 36037501 72075002 108112503 216225006