Search a number
-
+
18913341 = 319418093
BaseRepresentation
bin100100000100…
…1100000111101
31022120220020010
41020021200331
514320211331
61513213433
7316521636
oct110114075
938526203
1018913341
11a748967
126401279
133bc2935
14272488d
1519d8e46
hex120983d

18913341 has 16 divisors (see below), whose sum is σ = 27195840. Its totient is φ = 11652480.

The previous prime is 18913289. The next prime is 18913369. The reversal of 18913341 is 14331981.

It is not a de Polignac number, because 18913341 - 26 = 18913277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18913299 and 18913308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18913381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1710 + ... + 6383.

It is an arithmetic number, because the mean of its divisors is an integer number (1699740).

Almost surely, 218913341 is an apocalyptic number.

It is an amenable number.

18913341 is a deficient number, since it is larger than the sum of its proper divisors (8282499).

18913341 is a wasteful number, since it uses less digits than its factorization.

18913341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156.

The product of its digits is 2592, while the sum is 30.

The square root of 18913341 is about 4348.9471139576. The cubic root of 18913341 is about 266.4338605293.

It can be divided in two parts, 189 and 13341, that added together give a triangular number (13530 = T164).

The spelling of 18913341 in words is "eighteen million, nine hundred thirteen thousand, three hundred forty-one".

Divisors: 1 3 19 41 57 123 779 2337 8093 24279 153767 331813 461301 995439 6304447 18913341