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2118200293 = 111021188603
BaseRepresentation
bin111111001000001…
…0010101111100101
312110121202201112201
41332100102233211
513314224402133
6550104214501
7103330256026
oct17620225745
95417681481
102118200293
1199773a260
124b146a431
13279ac1071
14161466c4d
15c5e5ed7d
hex7e412be5

2118200293 has 8 divisors (see below), whose sum is σ = 2313039456. Its totient is φ = 1923740400.

The previous prime is 2118200291. The next prime is 2118200303. The reversal of 2118200293 is 3920028112.

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

It is a cyclic number.

It is not a de Polignac number, because 2118200293 - 21 = 2118200291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118200291) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 83071 + ... + 105532.

It is an arithmetic number, because the mean of its divisors is an integer number (289129932).

Almost surely, 22118200293 is an apocalyptic number.

It is an amenable number.

2118200293 is a deficient number, since it is larger than the sum of its proper divisors (194839163).

2118200293 is a wasteful number, since it uses less digits than its factorization.

2118200293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189635.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2118200293 is about 46023.9100142524. The cubic root of 2118200293 is about 1284.2680389833.

The spelling of 2118200293 in words is "two billion, one hundred eighteen million, two hundred thousand, two hundred ninety-three".

Divisors: 1 11 1021 11231 188603 2074633 192563663 2118200293