Search a number
-
+
2100110221 = 11316158681
BaseRepresentation
bin111110100101101…
…0010001110001101
312102100201122122001
41331023102032031
513300112011341
6544220352301
7103020433216
oct17513221615
95370648561
102100110221
11988503990
124a73a5691
13276129091
1415ccb840d
15c4589d31
hex7d2d238d

2100110221 has 8 divisors (see below), whose sum is σ = 2364933888. Its totient is φ = 1847604000.

The previous prime is 2100110189. The next prime is 2100110231. The reversal of 2100110221 is 1220110012.

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

It is not a de Polignac number, because 2100110221 - 25 = 2100110189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100110198 and 2100110207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100110231) 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, 3079000 + ... + 3079681.

It is an arithmetic number, because the mean of its divisors is an integer number (295616736).

Almost surely, 22100110221 is an apocalyptic number.

It is an amenable number.

2100110221 is a deficient number, since it is larger than the sum of its proper divisors (264823667).

2100110221 is a wasteful number, since it uses less digits than its factorization.

2100110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6158723.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2100110221 is about 45826.9595434827. The cubic root of 2100110221 is about 1280.6015688362.

Adding to 2100110221 its reverse (1220110012), we get a palindrome (3320220233).

The spelling of 2100110221 in words is "two billion, one hundred million, one hundred ten thousand, two hundred twenty-one".

Divisors: 1 11 31 341 6158681 67745491 190919111 2100110221