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30133123441 = 171772536673
BaseRepresentation
bin11100000100000100…
…101111100101110001
32212210000210021101221
4130010010233211301
5443203034422231
621502025225041
72114504215561
oct340404574561
985700707357
1030133123441
11118633a9703
125a0b632181
132ac2b35475
14165bdbcda1
15bb5672d11
hex70412f971

30133123441 has 4 divisors (see below), whose sum is σ = 31905660132. Its totient is φ = 28360586752.

The previous prime is 30133123439. The next prime is 30133123453. The reversal of 30133123441 is 14432133103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14432133103 = 24329593207.

It can be written as a sum of positive squares in 2 ways, for example, as 9939292416 + 20193831025 = 99696^2 + 142105^2 .

It is a cyclic number.

It is not a de Polignac number, because 30133123441 - 21 = 30133123439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30133123421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886268320 + ... + 886268353.

It is an arithmetic number, because the mean of its divisors is an integer number (7976415033).

Almost surely, 230133123441 is an apocalyptic number.

It is an amenable number.

30133123441 is a deficient number, since it is larger than the sum of its proper divisors (1772536691).

30133123441 is a wasteful number, since it uses less digits than its factorization.

30133123441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772536690.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 30133123441 its reverse (14432133103), we get a palindrome (44565256544).

The spelling of 30133123441 in words is "thirty billion, one hundred thirty-three million, one hundred twenty-three thousand, four hundred forty-one".

Divisors: 1 17 1772536673 30133123441