Search a number
-
+
54360289 = 371469197
BaseRepresentation
bin1100111101011…
…1100011100001
310210021210022001
43033113203201
5102404012124
65221044001
71230024544
oct317274341
9123253261
1054360289
1128759765
1216256601
13b353c69
14731085b
154b8bb44
hex33d78e1

54360289 has 4 divisors (see below), whose sum is σ = 55829524. Its totient is φ = 52891056.

The previous prime is 54360277. The next prime is 54360347. The reversal of 54360289 is 98206345.

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 42354064 + 12006225 = 6508^2 + 3465^2 .

It is not a de Polignac number, because 54360289 - 221 = 52263137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 1469197 = 54360289 / (5 + 4 + 3 + 6 + 0 + 2 + 8 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54360209) 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, 734562 + ... + 734635.

It is an arithmetic number, because the mean of its divisors is an integer number (13957381).

Almost surely, 254360289 is an apocalyptic number.

It is an amenable number.

54360289 is a deficient number, since it is larger than the sum of its proper divisors (1469235).

54360289 is a wasteful number, since it uses less digits than its factorization.

54360289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469234.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 54360289 is about 7372.9430351794. The cubic root of 54360289 is about 378.8150739775.

The spelling of 54360289 in words is "fifty-four million, three hundred sixty thousand, two hundred eighty-nine".

Divisors: 1 37 1469197 54360289