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30105310 = 2519158449
BaseRepresentation
bin111001011010…
…1111011011110
32002122111201111
41302311323132
530201332220
62553132234
7513614404
oct162657336
962574644
1030105310
1115aa2624
12a0ba07a
136310bc1
143dd9474
15299a15a
hex1cb5ede

30105310 has 16 divisors (see below), whose sum is σ = 57042000. Its totient is φ = 11408256.

The previous prime is 30105307. The next prime is 30105331. The reversal of 30105310 is 1350103.

It is a super-2 number, since 2×301053102 = 1812659380392200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 79035 + ... + 79414.

It is an arithmetic number, because the mean of its divisors is an integer number (3565125).

Almost surely, 230105310 is an apocalyptic number.

30105310 is a deficient number, since it is larger than the sum of its proper divisors (26936690).

30105310 is a wasteful number, since it uses less digits than its factorization.

30105310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158475.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 30105310 is about 5486.8305969840. The cubic root of 30105310 is about 311.0864067213.

Adding to 30105310 its reverse (1350103), we get a palindrome (31455413).

The spelling of 30105310 in words is "thirty million, one hundred five thousand, three hundred ten".

Divisors: 1 2 5 10 19 38 95 190 158449 316898 792245 1584490 3010531 6021062 15052655 30105310