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310020105 = 35233792371
BaseRepresentation
bin10010011110101…
…000100000001001
3210121100122122010
4102132220200021
51113331120410
650432450133
710453061463
oct2236504011
9717318563
10310020105
11149aa876a
12879a9949
134c2c8865
142d261133
151c33cc20
hex127a8809

310020105 has 32 divisors (see below), whose sum is σ = 519183360. Its totient is φ = 157671360.

The previous prime is 310020097. The next prime is 310020127. The reversal of 310020105 is 501020013.

It is not a de Polignac number, because 310020105 - 23 = 310020097 is a prime.

It is a super-2 number, since 2×3100201052 = 192224931008422050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129570 + ... + 131940.

It is an arithmetic number, because the mean of its divisors is an integer number (16224480).

Almost surely, 2310020105 is an apocalyptic number.

It is an amenable number.

310020105 is a deficient number, since it is larger than the sum of its proper divisors (209163255).

310020105 is a wasteful number, since it uses less digits than its factorization.

310020105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 310020105 is about 17607.3877960361. The cubic root of 310020105 is about 676.8045759287.

Adding to 310020105 its reverse (501020013), we get a palindrome (811040118).

The spelling of 310020105 in words is "three hundred ten million, twenty thousand, one hundred five".

Divisors: 1 3 5 15 23 69 115 345 379 1137 1895 2371 5685 7113 8717 11855 26151 35565 43585 54533 130755 163599 272665 817995 898609 2695827 4493045 13479135 20668007 62004021 103340035 310020105