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2120118663 = 31354362017
BaseRepresentation
bin111111001011110…
…0111000110000111
312110202101012001110
41332113213012013
513320222244123
6550213300103
7103352465655
oct17627470607
95422335043
102120118663
1199882a593
124b2034633
1327a3132b0
14161805dd5
15c61dd493
hex7e5e7187

2120118663 has 8 divisors (see below), whose sum is σ = 3044273008. Its totient is φ = 1304688384.

The previous prime is 2120118661. The next prime is 2120118677. The reversal of 2120118663 is 3668110212.

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

It is not a de Polignac number, because 2120118663 - 21 = 2120118661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120118663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120118661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27180970 + ... + 27181047.

It is an arithmetic number, because the mean of its divisors is an integer number (380534126).

Almost surely, 22120118663 is an apocalyptic number.

2120118663 is a deficient number, since it is larger than the sum of its proper divisors (924154345).

2120118663 is a wasteful number, since it uses less digits than its factorization.

2120118663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54362033.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2120118663 is about 46044.7463126902. The cubic root of 2120118663 is about 1284.6556255430.

Adding to 2120118663 its reverse (3668110212), we get a palindrome (5788228875).

The spelling of 2120118663 in words is "two billion, one hundred twenty million, one hundred eighteen thousand, six hundred sixty-three".

Divisors: 1 3 13 39 54362017 163086051 706706221 2120118663