Search a number
-
+
18874876066 = 213768886409
BaseRepresentation
bin10001100101000001…
…111100000010100010
31210201102102001100221
4101211001330002202
5302123432013231
612400534033254
71235510541124
oct214501740242
953642361327
1018874876066
118006414832
1237a91a882a
131a1a56b527
14cb0ac7214
157570c0d11
hex46507c0a2

18874876066 has 8 divisors (see below), whose sum is σ = 28518973740. Its totient is φ = 9368551488.

The previous prime is 18874876043. The next prime is 18874876081. The reversal of 18874876066 is 66067847881.

It can be written as a sum of positive squares in 2 ways, for example, as 16888302025 + 1986574041 = 129955^2 + 44571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18874875995 and 18874876013.

It is an unprimeable number.

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, 34442931 + ... + 34443478.

Almost surely, 218874876066 is an apocalyptic number.

18874876066 is a deficient number, since it is larger than the sum of its proper divisors (9644097674).

18874876066 is a wasteful number, since it uses less digits than its factorization.

18874876066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68886548.

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 18874876066 in words is "eighteen billion, eight hundred seventy-four million, eight hundred seventy-six thousand, sixty-six".

Divisors: 1 2 137 274 68886409 137772818 9437438033 18874876066