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54405401 = 415325037
BaseRepresentation
bin1100111110001…
…0100100011001
310210101002011212
43033202210121
5102411433101
65222032505
71230303221
oct317424431
9123332155
1054405401
112878a646
1216278735
13b36b65b
147323081
154b9a1bb
hex33e2919

54405401 has 8 divisors (see below), whose sum is σ = 56786184. Its totient is φ = 52074880.

The previous prime is 54405397. The next prime is 54405431. The reversal of 54405401 is 10450445.

54405401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2637376 + 51768025 = 1624^2 + 7195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54405401 - 22 = 54405397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54405431) 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 7 ways as a sum of consecutive naturals, for example, 10346 + ... + 14691.

It is an arithmetic number, because the mean of its divisors is an integer number (7098273).

Almost surely, 254405401 is an apocalyptic number.

It is an amenable number.

54405401 is a deficient number, since it is larger than the sum of its proper divisors (2380783).

54405401 is a wasteful number, since it uses less digits than its factorization.

54405401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25131.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 54405401 is about 7376.0016946853. The cubic root of 54405401 is about 378.9198341549.

Adding to 54405401 its reverse (10450445), we get a palindrome (64855846).

The spelling of 54405401 in words is "fifty-four million, four hundred five thousand, four hundred one".

Divisors: 1 41 53 2173 25037 1026517 1326961 54405401