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3161116025 = 52971303553
BaseRepresentation
bin1011110001101010…
…1100110101111001
322011022012022222022
42330122230311321
522433221203100
61241401404225
7141223020464
oct27432546571
98138168868
103161116025
111382405291
12742799675
133b4ba5c72
1421db862db
151377bbe85
hexbc6acd79

3161116025 has 12 divisors (see below), whose sum is σ = 3960197052. Its totient is φ = 2502819840.

The previous prime is 3161116019. The next prime is 3161116027. The reversal of 3161116025 is 5206111613.

It can be written as a sum of positive squares in 6 ways, for example, as 664814656 + 2496301369 = 25784^2 + 49963^2 .

It is not a de Polignac number, because 3161116025 - 26 = 3161115961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3161115985 and 3161116003.

It is not an unprimeable number, because it can be changed into a prime (3161116027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649352 + ... + 654201.

It is an arithmetic number, because the mean of its divisors is an integer number (330016421).

Almost surely, 23161116025 is an apocalyptic number.

It is an amenable number.

3161116025 is a deficient number, since it is larger than the sum of its proper divisors (799081027).

3161116025 is a wasteful number, since it uses less digits than its factorization.

3161116025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303660 (or 1303655 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 3161116025 is about 56223.8030108245. The cubic root of 3161116025 is about 1467.6195178496.

Adding to 3161116025 its reverse (5206111613), we get a palindrome (8367227638).

The spelling of 3161116025 in words is "three billion, one hundred sixty-one million, one hundred sixteen thousand, twenty-five".

Divisors: 1 5 25 97 485 2425 1303553 6517765 32588825 126444641 632223205 3161116025