Search a number
-
+
20274341 = 31654011
BaseRepresentation
bin100110101010…
…1110010100101
31102011001011112
41031111302211
520142234331
62002314405
7334220603
oct115256245
942131145
1020274341
111049845a
126958a05
13427b269
14299a873
151ba732b
hex1355ca5

20274341 has 4 divisors (see below), whose sum is σ = 20928384. Its totient is φ = 19620300.

The previous prime is 20274329. The next prime is 20274361. The reversal of 20274341 is 14347202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20274341 is a prime.

It is a super-2 number, since 2×202743412 = 822097805968562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20274361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 326975 + ... + 327036.

It is an arithmetic number, because the mean of its divisors is an integer number (5232096).

Almost surely, 220274341 is an apocalyptic number.

It is an amenable number.

20274341 is a deficient number, since it is larger than the sum of its proper divisors (654043).

20274341 is an equidigital number, since it uses as much as digits as its factorization.

20274341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654042.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20274341 is about 4502.7037433080. The cubic root of 20274341 is about 272.6772563868.

The spelling of 20274341 in words is "twenty million, two hundred seventy-four thousand, three hundred forty-one".

Divisors: 1 31 654011 20274341