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30041341021 = 54155529281
BaseRepresentation
bin11011111110100110…
…100111110001011101
32212112122002020121001
4123332212213301131
5443011040403041
621444550110301
72112311120416
oct337646476135
985478066531
1030041341021
111181661016a
1259a494b391
132aa9b0b143
14164db2a80d
15bac593131
hex6fe9a7c5d

30041341021 has 4 divisors (see below), whose sum is σ = 30096870844. Its totient is φ = 29985811200.

The previous prime is 30041341013. The next prime is 30041341039. The reversal of 30041341021 is 12014314003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12014314003 = 48271248893.

It can be written as a sum of positive squares in 2 ways, for example, as 15242618521 + 14798722500 = 123461^2 + 121650^2 .

It is a cyclic number.

It is not a de Polignac number, because 30041341021 - 23 = 30041341013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30041341021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30041341321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27764100 + ... + 27765181.

It is an arithmetic number, because the mean of its divisors is an integer number (7524217711).

Almost surely, 230041341021 is an apocalyptic number.

It is an amenable number.

30041341021 is a deficient number, since it is larger than the sum of its proper divisors (55529823).

30041341021 is an equidigital number, since it uses as much as digits as its factorization.

30041341021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55529822.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30041341021 its reverse (12014314003), we get a palindrome (42055655024).

The spelling of 30041341021 in words is "thirty billion, forty-one million, three hundred forty-one thousand, twenty-one".

Divisors: 1 541 55529281 30041341021