Search a number
-
+
30442032212 = 2219531389663
BaseRepresentation
bin11100010110011111…
…001000110001010100
32220120120001110120112
4130112133020301110
5444321130012322
621552422222152
72125245001334
oct342637106124
986516043515
1030442032212
1111a01808409
125a96b84958
132b41b32217
14168b0310c4
15bd28415e2
hex7167c8c54

30442032212 has 12 divisors (see below), whose sum is σ = 53276420736. Its totient is φ = 15220197720.

The previous prime is 30442032193. The next prime is 30442032223. The reversal of 30442032212 is 21223024403.

It is a super-2 number, since 2×304420322122 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 116708 + ... + 272955.

It is an arithmetic number, because the mean of its divisors is an integer number (4439701728).

Almost surely, 230442032212 is an apocalyptic number.

It is an amenable number.

30442032212 is a deficient number, since it is larger than the sum of its proper divisors (22834388524).

30442032212 is a wasteful number, since it uses less digits than its factorization.

30442032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409198 (or 409196 counting only the distinct ones).

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

Adding to 30442032212 its reverse (21223024403), we get a palindrome (51665056615).

The spelling of 30442032212 in words is "thirty billion, four hundred forty-two million, thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 19531 39062 78124 389663 779326 1558652 7610508053 15221016106 30442032212