Search a number
-
+
30442103042 = 2131663704059
BaseRepresentation
bin11100010110011111…
…011010000100000010
32220120120012001201212
4130112133122010002
5444321134244132
621552423530122
72125245415001
oct342637320402
986516161655
1030442103042
1111a0185664a
125a96bb9942
132b41b58530
14168b04cc38
15bd28575b2
hex7167da102

30442103042 has 16 divisors (see below), whose sum is σ = 49205345280. Its totient is φ = 14041732752.

The previous prime is 30442103033. The next prime is 30442103047. The reversal of 30442103042 is 24030124403.

It is a junction number, because it is equal to n+sod(n) for n = 30442102999 and 30442103017.

It is not an unprimeable number, because it can be changed into a prime (30442103047) 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, 308792 + ... + 395267.

It is an arithmetic number, because the mean of its divisors is an integer number (3075334080).

Almost surely, 230442103042 is an apocalyptic number.

30442103042 is a deficient number, since it is larger than the sum of its proper divisors (18763242238).

30442103042 is a wasteful number, since it uses less digits than its factorization.

30442103042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705737.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30442103042 its reverse (24030124403), we get a palindrome (54472227445).

The spelling of 30442103042 in words is "thirty billion, four hundred forty-two million, one hundred three thousand, forty-two".

Divisors: 1 2 13 26 1663 3326 21619 43238 704059 1408118 9152767 18305534 1170850117 2341700234 15221051521 30442103042