Search a number
-
+
12020841 = 327190807
BaseRepresentation
bin101101110110…
…110001101001
3211121201111100
4231312301221
511034131331
61105352013
7204114120
oct55666151
924551440
1012020841
116870488
124038609
13264b631
14184cab7
1510c6ae6
hexb76c69

12020841 has 12 divisors (see below), whose sum is σ = 19844032. Its totient is φ = 6869016.

The previous prime is 12020759. The next prime is 12020851. The reversal of 12020841 is 14802021.

It is not a de Polignac number, because 12020841 - 27 = 12020713 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 (12020851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95341 + ... + 95466.

Almost surely, 212020841 is an apocalyptic number.

It is an amenable number.

12020841 is a deficient number, since it is larger than the sum of its proper divisors (7823191).

12020841 is a wasteful number, since it uses less digits than its factorization.

12020841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190820 (or 190817 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 12020841 is about 3467.1084494143. The cubic root of 12020841 is about 229.0753106864.

Adding to 12020841 its reverse (14802021), we get a palindrome (26822862).

The spelling of 12020841 in words is "twelve million, twenty thousand, eight hundred forty-one".

Divisors: 1 3 7 9 21 63 190807 572421 1335649 1717263 4006947 12020841