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6115043131 = 10993556267
BaseRepresentation
bin1011011000111110…
…00010011100111011
3120210011112101011221
411230133002130323
5100010422340011
62450442332511
7304352003041
oct55437023473
916704471157
106115043131
11265886745a
121227aba137
13765b78722
144201d8391
1525bcae971
hex16c7c273b

6115043131 has 4 divisors (see below), whose sum is σ = 6115610392. Its totient is φ = 6114475872.

The previous prime is 6115043107. The next prime is 6115043161. The reversal of 6115043131 is 1313405116.

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

It is a cyclic number.

It is not a de Polignac number, because 6115043131 - 27 = 6115043003 is a prime.

It is a super-2 number, since 2×61150431312 = 74787504987980566322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6115043096 and 6115043105.

It is not an unprimeable number, because it can be changed into a prime (6115043101) 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 3 ways as a sum of consecutive naturals, for example, 267141 + ... + 289126.

It is an arithmetic number, because the mean of its divisors is an integer number (1528902598).

Almost surely, 26115043131 is an apocalyptic number.

6115043131 is a deficient number, since it is larger than the sum of its proper divisors (567261).

6115043131 is a wasteful number, since it uses less digits than its factorization.

6115043131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567260.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 6115043131 is about 78198.7412366721. The cubic root of 6115043131 is about 1828.6608825324.

Adding to 6115043131 its reverse (1313405116), we get a palindrome (7428448247).

The spelling of 6115043131 in words is "six billion, one hundred fifteen million, forty-three thousand, one hundred thirty-one".

Divisors: 1 10993 556267 6115043131