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30315144130 = 2515719309009
BaseRepresentation
bin11100001110111011…
…000110001111000010
32220020201021212211221
4130032323012033002
5444041134103010
621532050425254
72122144321255
oct341673061702
986221255757
1030315144130
1111947121527
125a6059222a
132b2176600b
14167824109c
15bc6629dda
hex70eec63c2

30315144130 has 16 divisors (see below), whose sum is σ = 54914824440. Its totient is φ = 12048820992.

The previous prime is 30315144121. The next prime is 30315144137. The reversal of 30315144130 is 3144151303.

It can be written as a sum of positive squares in 4 ways, for example, as 28341385801 + 1973758329 = 168349^2 + 44427^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30315144095 and 30315144104.

It is not an unprimeable number, because it can be changed into a prime (30315144137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9652935 + ... + 9656074.

Almost surely, 230315144130 is an apocalyptic number.

30315144130 is a deficient number, since it is larger than the sum of its proper divisors (24599680310).

30315144130 is a wasteful number, since it uses less digits than its factorization.

30315144130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19309173.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 30315144130 its reverse (3144151303), we get a palindrome (33459295433).

The spelling of 30315144130 in words is "thirty billion, three hundred fifteen million, one hundred forty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 157 314 785 1570 19309009 38618018 96545045 193090090 3031514413 6063028826 15157572065 30315144130