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2120302101 = 31765363667
BaseRepresentation
bin111111001100001…
…0011111000010101
312110202201111200110
41332120103320111
513320244131401
6550221233233
7103354161531
oct17630237025
95422644613
102120302101
11998945395
124b2102819
1327a378938
14161852bc1
15c62279d6
hex7e613e15

2120302101 has 16 divisors (see below), whose sum is σ = 2997998784. Its totient is φ = 1328327424.

The previous prime is 2120302099. The next prime is 2120302109. The reversal of 2120302101 is 1012030212.

It is not a de Polignac number, because 2120302101 - 21 = 2120302099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120302109) 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 15 ways as a sum of consecutive naturals, for example, 1470 + ... + 65136.

It is an arithmetic number, because the mean of its divisors is an integer number (187374924).

Almost surely, 22120302101 is an apocalyptic number.

It is an amenable number.

2120302101 is a deficient number, since it is larger than the sum of its proper divisors (877696683).

2120302101 is a wasteful number, since it uses less digits than its factorization.

2120302101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64340.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2120302101 is about 46046.7382232444. The cubic root of 2120302101 is about 1284.6926750200.

Adding to 2120302101 its reverse (1012030212), we get a palindrome (3132332313).

The spelling of 2120302101 in words is "two billion, one hundred twenty million, three hundred two thousand, one hundred one".

Divisors: 1 3 17 51 653 1959 11101 33303 63667 191001 1082339 3247017 41574551 124723653 706767367 2120302101