Search a number
-
+
54111143413 = 291865901497
BaseRepresentation
bin110010011001010001…
…101000010111110101
312011200002122220011201
4302121101220113311
51341304423042123
640505221332501
73623632062415
oct623121502765
9164602586151
1054111143413
1120a48369a38
12a5a1867131
135144707072
142894736645
15161a7715ad
hexc994685f5

54111143413 has 4 divisors (see below), whose sum is σ = 55977044940. Its totient is φ = 52245241888.

The previous prime is 54111143399. The next prime is 54111143417. The reversal of 54111143413 is 31434111145.

54111143413 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 an emirpimes, since its reverse is a distinct semiprime: 31434111145 = 56286822229.

It can be written as a sum of positive squares in 2 ways, for example, as 12432696004 + 41678447409 = 111502^2 + 204153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54111143413 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 (54111143417) 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, 932950720 + ... + 932950777.

It is an arithmetic number, because the mean of its divisors is an integer number (13994261235).

Almost surely, 254111143413 is an apocalyptic number.

It is an amenable number.

54111143413 is a deficient number, since it is larger than the sum of its proper divisors (1865901527).

54111143413 is a wasteful number, since it uses less digits than its factorization.

54111143413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865901526.

The product of its digits is 2880, while the sum is 28.

Adding to 54111143413 its reverse (31434111145), we get a palindrome (85545254558).

The spelling of 54111143413 in words is "fifty-four billion, one hundred eleven million, one hundred forty-three thousand, four hundred thirteen".

Divisors: 1 29 1865901497 54111143413