Search a number
-
+
30540012442 = 216791437163
BaseRepresentation
bin11100011100010100…
…111001101110011010
32220211101102101011221
4130130110321232122
51000021220344232
622010242242254
72130544552102
oct343424715632
986741371157
1030540012442
1111a5204a405
125b0395638a
132b592195a4
14169a058202
15bdb247897
hex71c539b9a

30540012442 has 8 divisors (see below), whose sum is σ = 46084330656. Its totient is φ = 15178568892.

The previous prime is 30540012409. The next prime is 30540012443. The reversal of 30540012442 is 24421004503.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (30540012443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45718248 + ... + 45718915.

It is an arithmetic number, because the mean of its divisors is an integer number (5760541332).

Almost surely, 230540012442 is an apocalyptic number.

30540012442 is a deficient number, since it is larger than the sum of its proper divisors (15544318214).

30540012442 is a wasteful number, since it uses less digits than its factorization.

30540012442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91437332.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 30540012442 its reverse (24421004503), we get a palindrome (54961016945).

The spelling of 30540012442 in words is "thirty billion, five hundred forty million, twelve thousand, four hundred forty-two".

Divisors: 1 2 167 334 91437163 182874326 15270006221 30540012442