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54214421 = 61888761
BaseRepresentation
bin1100111011001…
…1111100010101
310210000101012112
43032303330111
5102334330141
65214000405
71225546352
oct316637425
9123011175
1054214421
112866a108
12161a6105
13b302751
1472b3629
154b5d7eb
hex33b3f15

54214421 has 4 divisors (see below), whose sum is σ = 55103244. Its totient is φ = 53325600.

The previous prime is 54214409. The next prime is 54214441. The reversal of 54214421 is 12441245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9991921 + 44222500 = 3161^2 + 6650^2 .

It is a cyclic number.

It is not a de Polignac number, because 54214421 - 214 = 54198037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54214441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444320 + ... + 444441.

It is an arithmetic number, because the mean of its divisors is an integer number (13775811).

Almost surely, 254214421 is an apocalyptic number.

It is an amenable number.

54214421 is a deficient number, since it is larger than the sum of its proper divisors (888823).

54214421 is an equidigital number, since it uses as much as digits as its factorization.

54214421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888822.

The product of its digits is 1280, while the sum is 23.

The square root of 54214421 is about 7363.0442752981. The cubic root of 54214421 is about 378.4759385733.

Adding to 54214421 its reverse (12441245), we get a palindrome (66655666).

The spelling of 54214421 in words is "fifty-four million, two hundred fourteen thousand, four hundred twenty-one".

Divisors: 1 61 888761 54214421