Search a number
-
+
2809420941 = 36128335419
BaseRepresentation
bin1010011101110100…
…0101110010001101
321020210102101000110
42213131011302031
521223202432231
61142435350233
7126422453415
oct24735056215
97223371013
102809420941
111211932598
12664a52379
1335a078372
141c9197645
1511699b046
hexa7745c8d

2809420941 has 16 divisors (see below), whose sum is σ = 3809349440. Its totient is φ = 1841253120.

The previous prime is 2809420927. The next prime is 2809420963. The reversal of 2809420941 is 1490249082.

It is not a de Polignac number, because 2809420941 - 25 = 2809420909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2809420941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2809620941) 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, 515730 + ... + 521148.

It is an arithmetic number, because the mean of its divisors is an integer number (238084340).

Almost surely, 22809420941 is an apocalyptic number.

It is an amenable number.

2809420941 is a deficient number, since it is larger than the sum of its proper divisors (999928499).

2809420941 is a wasteful number, since it uses less digits than its factorization.

2809420941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8316.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 2809420941 is about 53003.9709927473. The cubic root of 2809420941 is about 1411.0387431489.

The spelling of 2809420941 in words is "two billion, eight hundred nine million, four hundred twenty thousand, nine hundred forty-one".

Divisors: 1 3 61 183 2833 5419 8499 16257 172813 330559 518439 991677 15352027 46056081 936473647 2809420941