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30102010 = 259731033
BaseRepresentation
bin111001011010…
…1000111111010
32002122100012021
41302311013322
530201231020
62553105054
7513601651
oct162650772
962570167
1030102010
1115aa00a4
12a0b818a
13630c553
143dd8198
1529991aa
hex1cb51fa

30102010 has 16 divisors (see below), whose sum is σ = 54743976. Its totient is φ = 11916288.

The previous prime is 30101999. The next prime is 30102031. The reversal of 30102010 is 1020103.

It can be written as a sum of positive squares in 4 ways, for example, as 25492401 + 4609609 = 5049^2 + 2147^2 .

It is a super-2 number, since 2×301020102 = 1812262012080200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30101984 and 30102002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14547 + ... + 16486.

Almost surely, 230102010 is an apocalyptic number.

30102010 is a deficient number, since it is larger than the sum of its proper divisors (24641966).

30102010 is a wasteful number, since it uses less digits than its factorization.

30102010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31137.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 30102010 is about 5486.5298686875. The cubic root of 30102010 is about 311.0750397049.

Adding to 30102010 its reverse (1020103), we get a palindrome (31122113).

The spelling of 30102010 in words is "thirty million, one hundred two thousand, ten".

Divisors: 1 2 5 10 97 194 485 970 31033 62066 155165 310330 3010201 6020402 15051005 30102010