Search a number
-
+
30140315530 = 25131264118341
BaseRepresentation
bin11100000100100000…
…001011011110001010
32212210112022200002121
4130010200023132022
5443211410044110
621502443321454
72114622312013
oct340440133612
985715280077
1030140315530
1111867471186
125a11b2028a
132ac4482c40
14165cd3200a
15bb60e3cda
hex70480b78a

30140315530 has 32 divisors (see below), whose sum is σ = 58433650128. Its totient is φ = 11127244800.

The previous prime is 30140315479. The next prime is 30140315537. The reversal of 30140315530 is 3551304103.

It can be written as a sum of positive squares in 8 ways, for example, as 284968161 + 29855347369 = 16881^2 + 172787^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30140315495 and 30140315504.

It is not an unprimeable number, because it can be changed into a prime (30140315537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1634160 + ... + 1652500.

Almost surely, 230140315530 is an apocalyptic number.

30140315530 is a deficient number, since it is larger than the sum of its proper divisors (28293334598).

30140315530 is a wasteful number, since it uses less digits than its factorization.

30140315530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31002.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 30140315530 its reverse (3551304103), we get a palindrome (33691619633).

The spelling of 30140315530 in words is "thirty billion, one hundred forty million, three hundred fifteen thousand, five hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 12641 18341 25282 36682 63205 91705 126410 164333 183410 238433 328666 476866 821665 1192165 1643330 2384330 231848581 463697162 1159242905 2318485810 3014031553 6028063106 15070157765 30140315530