Search a number
-
+
54390241 = 263206807
BaseRepresentation
bin1100111101111…
…0110111100001
310210100022101101
43033132313201
5102410441431
65221434401
71230211063
oct317366741
9123308341
1054390241
112877a214
121626ba01
13b364799
14731b733
154b95961
hex33dede1

54390241 has 4 divisors (see below), whose sum is σ = 54597312. Its totient is φ = 54183172.

The previous prime is 54390221. The next prime is 54390257. The reversal of 54390241 is 14209345.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14209345 = 52841869.

It is a cyclic number.

It is not a de Polignac number, because 54390241 - 27 = 54390113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54390221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103141 + ... + 103666.

It is an arithmetic number, because the mean of its divisors is an integer number (13649328).

Almost surely, 254390241 is an apocalyptic number.

It is an amenable number.

54390241 is a deficient number, since it is larger than the sum of its proper divisors (207071).

54390241 is a wasteful number, since it uses less digits than its factorization.

54390241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207070.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 54390241 is about 7374.9739660557. The cubic root of 54390241 is about 378.8846356989.

Adding to 54390241 its reverse (14209345), we get a palindrome (68599586).

The spelling of 54390241 in words is "fifty-four million, three hundred ninety thousand, two hundred forty-one".

Divisors: 1 263 206807 54390241