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30442023442 = 279631911467
BaseRepresentation
bin11100010110011111…
…000110101000010010
32220120120001000112201
4130112133012220102
5444321124222232
621552422113414
72125244633635
oct342637065022
986516030481
1030442023442
1111a01801866
125a96b7b86a
132b41b2b22c
14168b02bc1c
15bd283dbe7
hex7167c6a12

30442023442 has 8 divisors (see below), whose sum is σ = 45668793456. Its totient is φ = 15219092292.

The previous prime is 30442023431. The next prime is 30442023449. The reversal of 30442023442 is 24432024403.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30442023442.

It is not an unprimeable number, because it can be changed into a prime (30442023449) 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, 939808 + ... + 971659.

It is an arithmetic number, because the mean of its divisors is an integer number (5708599182).

Almost surely, 230442023442 is an apocalyptic number.

30442023442 is a deficient number, since it is larger than the sum of its proper divisors (15226770014).

30442023442 is a wasteful number, since it uses less digits than its factorization.

30442023442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919432.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 30442023442 its reverse (24432024403), we get a palindrome (54874047845).

The spelling of 30442023442 in words is "thirty billion, four hundred forty-two million, twenty-three thousand, four hundred forty-two".

Divisors: 1 2 7963 15926 1911467 3822934 15221011721 30442023442