Search a number
-
+
30141240212 = 2261389317557
BaseRepresentation
bin11100000100100011…
…101101001110010100
32212210121001122112002
4130010203231032110
5443212124141322
621502515214432
72114633212616
oct340443551624
985717048462
1030141240212
1111867a42986
125a122a7418
132ac4717aa5
14165d0d2db6
15bb6227c92
hex7048ed394

30141240212 has 24 divisors (see below), whose sum is σ = 53749867080. Its totient is φ = 14785407360.

The previous prime is 30141240203. The next prime is 30141240223. The reversal of 30141240212 is 21204214103.

It can be written as a sum of positive squares in 4 ways, for example, as 183169156 + 29958071056 = 13534^2 + 173084^2 .

It is a congruent number.

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, 63863 + ... + 253694.

It is an arithmetic number, because the mean of its divisors is an integer number (2239577795).

Almost surely, 230141240212 is an apocalyptic number.

It is an amenable number.

30141240212 is a deficient number, since it is larger than the sum of its proper divisors (23608626868).

30141240212 is a wasteful number, since it uses less digits than its factorization.

30141240212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318011 (or 318009 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 30141240212 its reverse (21204214103), we get a palindrome (51345454315).

The spelling of 30141240212 in words is "thirty billion, one hundred forty-one million, two hundred forty thousand, two hundred twelve".

Divisors: 1 2 4 61 122 244 389 778 1556 23729 47458 94916 317557 635114 1270228 19370977 38741954 77483908 123529673 247059346 494118692 7535310053 15070620106 30141240212