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310121113 = 714878969
BaseRepresentation
bin10010011111000…
…001001010011001
3210121112210012011
4102133001022121
51113342333423
650434545521
710453662121
oct2237011231
9717483164
10310121113
1114a067645
1287a382a1
134c332823
142d289c81
151c35cb0d
hex127c1299

310121113 has 8 divisors (see below), whose sum is σ = 315169920. Its totient is φ = 305091360.

The previous prime is 310121111. The next prime is 310121131. The reversal of 310121113 is 311121013.

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 310121113 - 21 = 310121111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310121093 and 310121102.

It is not an unprimeable number, because it can be changed into a prime (310121111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30093 + ... + 39061.

It is an arithmetic number, because the mean of its divisors is an integer number (39396240).

Almost surely, 2310121113 is an apocalyptic number.

It is an amenable number.

310121113 is a deficient number, since it is larger than the sum of its proper divisors (5048807).

310121113 is an equidigital number, since it uses as much as digits as its factorization.

310121113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9527.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 310121113 is about 17610.2559038760. The cubic root of 310121113 is about 676.8780714347.

Adding to 310121113 its reverse (311121013), we get a palindrome (621242126).

The spelling of 310121113 in words is "three hundred ten million, one hundred twenty-one thousand, one hundred thirteen".

Divisors: 1 71 487 8969 34577 636799 4367903 310121113