Search a number
-
+
54504431 = 173206143
BaseRepresentation
bin1100111111101…
…0101111101111
310210120010000122
43033322233233
5102423120211
65224115155
71231165022
oct317725757
9123503018
1054504431
1128847a93
1216305abb
13b3a4757
14734b1b9
154bb96db
hex33fabef

54504431 has 4 divisors (see below), whose sum is σ = 57710592. Its totient is φ = 51298272.

The previous prime is 54504421. The next prime is 54504449. The reversal of 54504431 is 13440545.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54504431 is a prime.

It is a super-2 number, since 2×545044312 = 5941465997267522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54504431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54504421) 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, 1603055 + ... + 1603088.

It is an arithmetic number, because the mean of its divisors is an integer number (14427648).

Almost surely, 254504431 is an apocalyptic number.

54504431 is a deficient number, since it is larger than the sum of its proper divisors (3206161).

54504431 is a wasteful number, since it uses less digits than its factorization.

54504431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206160.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 54504431 is about 7382.7116292051. The cubic root of 54504431 is about 379.1496010889.

Adding to 54504431 its reverse (13440545), we get a palindrome (67944976).

The spelling of 54504431 in words is "fifty-four million, five hundred four thousand, four hundred thirty-one".

Divisors: 1 17 3206143 54504431