Search a number
2162105223 = 31831393611
BaseRepresentation
bin1000000011011111…
…0001101110000111
312120200101022210020
42000313301232013
513411444331343
6554313230223
7104402406525
oct20067615607
95520338706
102162105223
11a0a4a7723
12504102373
13285c24105
14167215315
15c9c33b83
hex80df1b87

2162105223 has 8 divisors (see below), whose sum is σ = 2884388736. Its totient is φ = 1440612600.

The previous prime is 2162105219. The next prime is 2162105251. The reversal of 2162105223 is 3225012612.

2162105223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2162105223 - 22 = 2162105219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2162105193 and 2162105202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162105123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191313 + ... + 202298.

It is an arithmetic number, because the mean of its divisors is an integer number (360548592).

Almost surely, 22162105223 is an apocalyptic number.

2162105223 is a deficient number, since it is larger than the sum of its proper divisors (722283513).

2162105223 is a wasteful number, since it uses less digits than its factorization.

2162105223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395445.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2162105223 is about 46498.4432320051. The cubic root of 2162105223 is about 1293.0806374213.

Adding to 2162105223 its reverse (3225012612), we get a palindrome (5387117835).

The spelling of 2162105223 in words is "two billion, one hundred sixty-two million, one hundred five thousand, two hundred twenty-three".