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30203143441 = 97193107639
BaseRepresentation
bin11100001000001111…
…110110010100010001
32212221220112122210021
4130020033312110101
5443324001042231
621513010103441
72116314324532
oct341017662421
985856478707
1030203143441
1111899983779
125a2ab7ab81
132b044b0113
141667408689
15bbb8a4811
hex7083f6511

30203143441 has 4 divisors (see below), whose sum is σ = 30206260800. Its totient is φ = 30200026084.

The previous prime is 30203143433. The next prime is 30203143501. The reversal of 30203143441 is 14434130203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14434130203 = 73197727811.

It is a cyclic number.

It is not a de Polignac number, because 30203143441 - 23 = 30203143433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30203143141) 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, 1544101 + ... + 1563538.

It is an arithmetic number, because the mean of its divisors is an integer number (7551565200).

Almost surely, 230203143441 is an apocalyptic number.

It is an amenable number.

30203143441 is a deficient number, since it is larger than the sum of its proper divisors (3117359).

30203143441 is an equidigital number, since it uses as much as digits as its factorization.

30203143441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117358.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 30203143441 its reverse (14434130203), we get a palindrome (44637273644).

The spelling of 30203143441 in words is "thirty billion, two hundred three million, one hundred forty-three thousand, four hundred forty-one".

Divisors: 1 9719 3107639 30203143441