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311140351051 = 3171253978277
BaseRepresentation
bin1001000011100010110…
…10001111110001001011
31002202002220110111102121
410201301122033301023
520044203412213201
6354534053312111
731323230230045
oct4416132176113
91082086414377
10311140351051
1110aa546869a2
1250374335637
1323456b572ca
14110b8908a95
1581607239a1
hex487168fc4b

311140351051 has 8 divisors (see below), whose sum is σ = 312150746160. Its totient is φ = 310130138208.

The previous prime is 311140351037. The next prime is 311140351087. The reversal of 311140351051 is 150153041113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311140351051 - 27 = 311140350923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311140351451) 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 7 ways as a sum of consecutive naturals, for example, 3935725 + ... + 4014001.

It is an arithmetic number, because the mean of its divisors is an integer number (39018843270).

Almost surely, 2311140351051 is an apocalyptic number.

311140351051 is a deficient number, since it is larger than the sum of its proper divisors (1010395109).

311140351051 is a wasteful number, since it uses less digits than its factorization.

311140351051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91133.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 311140351051 its reverse (150153041113), we get a palindrome (461293392164).

The spelling of 311140351051 in words is "three hundred eleven billion, one hundred forty million, three hundred fifty-one thousand, fifty-one".

Divisors: 1 317 12539 78277 3974863 24813809 981515303 311140351051