Search a number
-
+
218049196 = 2269178889
BaseRepresentation
bin11001111111100…
…10101010101100
3120012022001021011
430333302222230
5421310033241
633345315004
75255246641
oct1477625254
9505261234
10218049196
111020a0652
1261035a64
13362367c1
1420d5ddc8
1514222281
hexcff2aac

218049196 has 12 divisors (see below), whose sum is σ = 382143160. Its totient is φ = 108865440.

The previous prime is 218049151. The next prime is 218049233. The reversal of 218049196 is 691940812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36681 + ... + 42208.

Almost surely, 2218049196 is an apocalyptic number.

It is an amenable number.

218049196 is a deficient number, since it is larger than the sum of its proper divisors (164093964).

218049196 is a wasteful number, since it uses less digits than its factorization.

218049196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79584 (or 79582 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 218049196 is about 14766.4889530315. The cubic root of 218049196 is about 601.8914348950.

The spelling of 218049196 in words is "two hundred eighteen million, forty-nine thousand, one hundred ninety-six".

Divisors: 1 2 4 691 1382 2764 78889 157778 315556 54512299 109024598 218049196