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30421103443 = 297271442921
BaseRepresentation
bin11100010101001111…
…010011001101010011
32220112002200011200221
4130111033103031103
5444300300302233
621550353453511
72124602053453
oct342517231523
986462604627
1030421103443
11119a0a13305
125a8bb71297
132b3a6b5133
141688343d63
15bd0aaa42d
hex7153d3353

30421103443 has 8 divisors (see below), whose sum is σ = 31513416480. Its totient is φ = 29331677760.

The previous prime is 30421103437. The next prime is 30421103513. The reversal of 30421103443 is 34430112403.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30421103443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30421103423) 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 7 ways as a sum of consecutive naturals, for example, 700378 + ... + 742543.

It is an arithmetic number, because the mean of its divisors is an integer number (3939177060).

Almost surely, 230421103443 is an apocalyptic number.

30421103443 is a deficient number, since it is larger than the sum of its proper divisors (1092313037).

30421103443 is a wasteful number, since it uses less digits than its factorization.

30421103443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443677.

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

Adding to 30421103443 its reverse (34430112403), we get a palindrome (64851215846).

The spelling of 30421103443 in words is "thirty billion, four hundred twenty-one million, one hundred three thousand, four hundred forty-three".

Divisors: 1 29 727 21083 1442921 41844709 1049003567 30421103443