Search a number
-
+
20214485 = 561191347
BaseRepresentation
bin100110100011…
…1001011010101
31102001000001122
41031013023111
520133330420
62001133325
7333551234
oct115071325
942030048
1020214485
1110457495
12692a245
134259c45
142982b1b
151b94725
hex13472d5

20214485 has 16 divisors (see below), whose sum is σ = 24855552. Its totient is φ = 15777600.

The previous prime is 20214451. The next prime is 20214497. The reversal of 20214485 is 58441202.

It is a happy number.

It is not a de Polignac number, because 20214485 - 210 = 20213461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58082 + ... + 58428.

It is an arithmetic number, because the mean of its divisors is an integer number (1553472).

Almost surely, 220214485 is an apocalyptic number.

It is an amenable number.

20214485 is a deficient number, since it is larger than the sum of its proper divisors (4641067).

20214485 is a wasteful number, since it uses less digits than its factorization.

20214485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 20214485 is about 4496.0521571708. The cubic root of 20214485 is about 272.4086499065.

Adding to 20214485 its reverse (58441202), we get a palindrome (78655687).

The spelling of 20214485 in words is "twenty million, two hundred fourteen thousand, four hundred eighty-five".

Divisors: 1 5 61 191 305 347 955 1735 11651 21167 58255 66277 105835 331385 4042897 20214485