Search a number
-
+
20350463 = 719532887
BaseRepresentation
bin100110110100…
…0010111111111
31102021220120212
41031220113333
520202203323
62004103035
7334655540
oct115502777
942256525
1020350463
111053a671
126994a7b
1342a6ac3
1429ba4c7
151bbeb78
hex13685ff

20350463 has 16 divisors (see below), whose sum is σ = 24952320. Its totient is φ = 16207776.

The previous prime is 20350439. The next prime is 20350471. The reversal of 20350463 is 36405302.

It is a cyclic number.

It is not a de Polignac number, because 20350463 - 26 = 20350399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20350433) 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, 5606 + ... + 8492.

It is an arithmetic number, because the mean of its divisors is an integer number (1559520).

Almost surely, 220350463 is an apocalyptic number.

20350463 is a deficient number, since it is larger than the sum of its proper divisors (4601857).

20350463 is a wasteful number, since it uses less digits than its factorization.

20350463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 20350463 is about 4511.1487450537. The cubic root of 20350463 is about 273.0180946649.

Adding to 20350463 its reverse (36405302), we get a palindrome (56755765).

The spelling of 20350463 in words is "twenty million, three hundred fifty thousand, four hundred sixty-three".

Divisors: 1 7 19 53 133 371 1007 2887 7049 20209 54853 153011 383971 1071077 2907209 20350463