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216366112 = 2531218111
BaseRepresentation
bin11001110010101…
…11110000100000
3120002010112111201
430321113300200
5420342203422
633245250544
75235036664
oct1471276040
9502115451
10216366112
11101151076
1260563a54
1335a976b1
1420a428a4
1513edd727
hexce57c20

216366112 has 24 divisors (see below), whose sum is σ = 439713792. Its totient is φ = 104692800.

The previous prime is 216366103. The next prime is 216366113. The reversal of 216366112 is 211663612.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (216366113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108064 + ... + 110047.

It is an arithmetic number, because the mean of its divisors is an integer number (18321408).

Almost surely, 2216366112 is an apocalyptic number.

It is an amenable number.

216366112 is an abundant number, since it is smaller than the sum of its proper divisors (223347680).

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

216366112 is a wasteful number, since it uses less digits than its factorization.

216366112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218152 (or 218144 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 216366112 is about 14709.3885664905. The cubic root of 216366112 is about 600.3388012461.

The spelling of 216366112 in words is "two hundred sixteen million, three hundred sixty-six thousand, one hundred twelve".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 218111 436222 872444 1744888 3489776 6761441 6979552 13522882 27045764 54091528 108183056 216366112