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30288730443 = 341271908671
BaseRepresentation
bin11100001101010110…
…010101100101001011
32220011212120221002020
4130031112111211023
5444012403333233
621525304335523
72121403650366
oct341526254513
986155527066
1030288730443
1111933220534
125a537745a3
132b1914850a
1416749270dd
15bc415d9b3
hex70d59594b

30288730443 has 16 divisors (see below), whose sum is σ = 41522675712. Its totient is φ = 19627272000.

The previous prime is 30288730393. The next prime is 30288730447. The reversal of 30288730443 is 34403788203.

It is not a de Polignac number, because 30288730443 - 218 = 30288468299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30288730395 and 30288730404.

It is not an unprimeable number, because it can be changed into a prime (30288730447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421003 + ... + 487668.

It is an arithmetic number, because the mean of its divisors is an integer number (2595167232).

Almost surely, 230288730443 is an apocalyptic number.

30288730443 is a deficient number, since it is larger than the sum of its proper divisors (11233945269).

30288730443 is a wasteful number, since it uses less digits than its factorization.

30288730443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908986.

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 30288730443 in words is "thirty billion, two hundred eighty-eight million, seven hundred thirty thousand, four hundred forty-three".

Divisors: 1 3 41 123 271 813 11111 33333 908671 2726013 37255511 111766533 246249841 738749523 10096243481 30288730443