Search a number
-
+
30323443042 = 231489087791
BaseRepresentation
bin11100001111011010…
…110000010101100010
32220021021220111211001
4130033122300111202
5444100300134132
621532544342214
72122305004324
oct341732602542
986237814731
1030323443042
111195087a632
125a6331496a
132b233b0509
1416793a1614
15bc7218ce7
hex70f6b0562

30323443042 has 8 divisors (see below), whose sum is σ = 46952428032. Its totient is φ = 14672633700.

The previous prime is 30323443013. The next prime is 30323443049. The reversal of 30323443042 is 24034432303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×303234430422 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30323443042.

It is not an unprimeable number, because it can be changed into a prime (30323443049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 244543834 + ... + 244543957.

It is an arithmetic number, because the mean of its divisors is an integer number (5869053504).

Almost surely, 230323443042 is an apocalyptic number.

30323443042 is a deficient number, since it is larger than the sum of its proper divisors (16628984990).

30323443042 is a wasteful number, since it uses less digits than its factorization.

30323443042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489087824.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 30323443042 its reverse (24034432303), we get a palindrome (54357875345).

The spelling of 30323443042 in words is "thirty billion, three hundred twenty-three million, four hundred forty-three thousand, forty-two".

Divisors: 1 2 31 62 489087791 978175582 15161721521 30323443042