Search a number
-
+
20314567 = 721331891
BaseRepresentation
bin100110101111…
…1100111000111
31102020002100101
41031133213013
520200031232
62003224531
7334446100
oct115374707
942202311
1020314567
11105156a9
126978147
134293670
1429ab3a7
151bb41e7
hex135f9c7

20314567 has 12 divisors (see below), whose sum is σ = 25449816. Its totient is φ = 16072560.

The previous prime is 20314559. The next prime is 20314573. The reversal of 20314567 is 76541302.

It is not a de Polignac number, because 20314567 - 23 = 20314559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20314537) 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, 15309 + ... + 16582.

It is an arithmetic number, because the mean of its divisors is an integer number (2120818).

Almost surely, 220314567 is an apocalyptic number.

20314567 is a deficient number, since it is larger than the sum of its proper divisors (5135249).

20314567 is a wasteful number, since it uses less digits than its factorization.

20314567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31918 (or 31911 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 20314567 is about 4507.1684015577. The cubic root of 20314567 is about 272.8574754630.

Adding to 20314567 its reverse (76541302), we get a palindrome (96855869).

The spelling of 20314567 in words is "twenty million, three hundred fourteen thousand, five hundred sixty-seven".

Divisors: 1 7 13 49 91 637 31891 223237 414583 1562659 2902081 20314567