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3115299081 = 31038433027
BaseRepresentation
bin1011100110101111…
…1011000100001001
322001002222120221110
42321223323010021
522340004032311
61233043400533
7140125414416
oct27153730411
98032876843
103115299081
111359561344
1272b383149
133a855384b
14217a5b10d
1513376b8a6
hexb9afb109

3115299081 has 4 divisors (see below), whose sum is σ = 4153732112. Its totient is φ = 2076866052.

The previous prime is 3115299053. The next prime is 3115299119. The reversal of 3115299081 is 1809925113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3115299081 - 25 = 3115299049 is a prime.

It is a super-2 number, since 2×31152990812 = 19410176728158889122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3115299041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519216511 + ... + 519216516.

It is an arithmetic number, because the mean of its divisors is an integer number (1038433028).

Almost surely, 23115299081 is an apocalyptic number.

It is an amenable number.

3115299081 is a deficient number, since it is larger than the sum of its proper divisors (1038433031).

3115299081 is a wasteful number, since it uses less digits than its factorization.

3115299081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038433030.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 3115299081 is about 55814.8643373788. The cubic root of 3115299081 is about 1460.4944658136.

The spelling of 3115299081 in words is "three billion, one hundred fifteen million, two hundred ninety-nine thousand, eighty-one".

Divisors: 1 3 1038433027 3115299081