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54420641 = 114947331
BaseRepresentation
bin1100111110011…
…0010010100001
310210101212002022
43033212102201
5102412430031
65222231225
71230365522
oct317462241
9123355068
1054420641
11287a0040
1216285515
13b375582
147328849
154b9e97b
hex33e64a1

54420641 has 4 divisors (see below), whose sum is σ = 59367984. Its totient is φ = 49473300.

The previous prime is 54420581. The next prime is 54420649. The reversal of 54420641 is 14602445.

54420641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 54420641 - 218 = 54158497 is a prime.

It is a super-4 number, since 4×544206414 (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54420641.

It is not an unprimeable number, because it can be changed into a prime (54420649) 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, 2473655 + ... + 2473676.

It is an arithmetic number, because the mean of its divisors is an integer number (14841996).

Almost surely, 254420641 is an apocalyptic number.

It is an amenable number.

54420641 is a deficient number, since it is larger than the sum of its proper divisors (4947343).

54420641 is a wasteful number, since it uses less digits than its factorization.

54420641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4947342.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 54420641 is about 7377.0347023719. The cubic root of 54420641 is about 378.9552117647.

The spelling of 54420641 in words is "fifty-four million, four hundred twenty thousand, six hundred forty-one".

Divisors: 1 11 4947331 54420641