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3111040321 = 61241431491
BaseRepresentation
bin1011100101101110…
…1011010101000001
322000210222020000121
42321123223111001
522332411242241
61232412220241
7140044256254
oct27133532501
98023866017
103111040321
111357112704
12729a6a681
133a76c227c
1421726d09b
151331c9ad1
hexb96eb541

3111040321 has 16 divisors (see below), whose sum is σ = 3189010176. Its totient is φ = 3034080000.

The previous prime is 3111040313. The next prime is 3111040363. The reversal of 3111040321 is 1230401113.

It is a cyclic number.

It is not a de Polignac number, because 3111040321 - 23 = 3111040313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3111040295 and 3111040304.

It is not an unprimeable number, because it can be changed into a prime (3111040021) 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 15 ways as a sum of consecutive naturals, for example, 6335886 + ... + 6336376.

It is an arithmetic number, because the mean of its divisors is an integer number (199313136).

Almost surely, 23111040321 is an apocalyptic number.

It is an amenable number.

3111040321 is a deficient number, since it is larger than the sum of its proper divisors (77969855).

3111040321 is a wasteful number, since it uses less digits than its factorization.

3111040321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3111040321 is about 55776.7005209164. The cubic root of 3111040321 is about 1459.8286408317.

Adding to 3111040321 its reverse (1230401113), we get a palindrome (4341441434).

The spelling of 3111040321 in words is "three billion, one hundred eleven million, forty thousand, three hundred twenty-one".

Divisors: 1 61 241 431 491 14701 26291 29951 103871 118331 211621 6336131 7218191 12908881 51000661 3111040321