Search a number
-
+
4180305025 = 521312862477
BaseRepresentation
bin1111100100101010…
…0110010010000001
3101210022222111110001
43321022212102001
532030124230100
61530450240001
7205410002131
oct37112462201
911708874401
104180305025
111855745046
12987b86001
135180a1390
142b928aac1
15196eddd6a
hexf92a6481

4180305025 has 12 divisors (see below), whose sum is σ = 5582315452. Its totient is φ = 3086994240.

The previous prime is 4180305023. The next prime is 4180305037. The reversal of 4180305025 is 5205030814.

It can be written as a sum of positive squares in 6 ways, for example, as 55711296 + 4124593729 = 7464^2 + 64223^2 .

It is not a de Polignac number, because 4180305025 - 21 = 4180305023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4180304984 and 4180305002.

It is not an unprimeable number, because it can be changed into a prime (4180305023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6430914 + ... + 6431563.

Almost surely, 24180305025 is an apocalyptic number.

It is an amenable number.

4180305025 is a deficient number, since it is larger than the sum of its proper divisors (1402010427).

4180305025 is a wasteful number, since it uses less digits than its factorization.

4180305025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12862500 (or 12862495 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 4180305025 is about 64655.2784001430. The cubic root of 4180305025 is about 1610.9027542639.

Adding to 4180305025 its reverse (5205030814), we get a palindrome (9385335839).

The spelling of 4180305025 in words is "four billion, one hundred eighty million, three hundred five thousand, twenty-five".

Divisors: 1 5 13 25 65 325 12862477 64312385 167212201 321561925 836061005 4180305025