Search a number
-
+
2120321341 = 29118161909
BaseRepresentation
bin111111001100001…
…1000100100111101
312110202202111002001
41332120120210331
513320300240331
6550221502301
7103354301605
oct17630304475
95422674061
102120321341
11998958896
124b2111991
1327a384618
14161859c05
15c622d561
hex7e61893d

2120321341 has 8 divisors (see below), whose sum is σ = 2195328600. Its totient is φ = 2045440320.

The previous prime is 2120321323. The next prime is 2120321393. The reversal of 2120321341 is 1431230212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1349092900 + 771228441 = 36730^2 + 27771^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2120321341 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 (2120321041) 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, 3295 + ... + 65203.

It is an arithmetic number, because the mean of its divisors is an integer number (274416075).

Almost surely, 22120321341 is an apocalyptic number.

It is an amenable number.

2120321341 is a deficient number, since it is larger than the sum of its proper divisors (75007259).

2120321341 is a wasteful number, since it uses less digits than its factorization.

2120321341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63119.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2120321341 is about 46046.9471409343. The cubic root of 2120321341 is about 1284.6965608518.

Adding to 2120321341 its reverse (1431230212), we get a palindrome (3551551553).

The spelling of 2120321341 in words is "two billion, one hundred twenty million, three hundred twenty-one thousand, three hundred forty-one".

Divisors: 1 29 1181 34249 61909 1795361 73114529 2120321341