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310121013 = 3372793883
BaseRepresentation
bin10010011111000…
…001001000110101
3210121112210001110
4102133001020311
51113342333023
650434545233
710453661616
oct2237011065
9717483043
10310121013
1114a067564
1287a38219
134c332777
142d289c0d
151c35ca93
hex127c1235

310121013 has 8 divisors (see below), whose sum is σ = 424670368. Its totient is φ = 201159504.

The previous prime is 310120997. The next prime is 310121017.

310121013 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 310121013 - 24 = 310120997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 310121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310121017) 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, 1396831 + ... + 1397052.

It is an arithmetic number, because the mean of its divisors is an integer number (53083796).

Almost surely, 2310121013 is an apocalyptic number.

It is an amenable number.

310121013 is a deficient number, since it is larger than the sum of its proper divisors (114549355).

310121013 is a wasteful number, since it uses less digits than its factorization.

310121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793923.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 310121013 is about 17610.2530646212. The cubic root of 310121013 is about 676.8779986805.

The spelling of 310121013 in words is "three hundred ten million, one hundred twenty-one thousand, thirteen".

Divisors: 1 3 37 111 2793883 8381649 103373671 310121013