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30640010353 = 133372297369
BaseRepresentation
bin11100100010010010…
…010111010001110001
32221002100120210112021
4130202102113101301
51000222320312403
622024213431441
72133200535151
oct344222272161
987070523467
1030640010353
1111aa353a307
125b3133b581
132b73b5c154
1416a9448761
15be4deb8bd
hex722497471

30640010353 has 4 divisors (see below), whose sum is σ = 30642321060. Its totient is φ = 30637699648.

The previous prime is 30640010351. The next prime is 30640010363. The reversal of 30640010353 is 35301004603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13831406449 + 16808603904 = 117607^2 + 129648^2 .

It is a cyclic number.

It is not a de Polignac number, because 30640010353 - 21 = 30640010351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30640010351) 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, 1135348 + ... + 1162021.

It is an arithmetic number, because the mean of its divisors is an integer number (7660580265).

Almost surely, 230640010353 is an apocalyptic number.

It is an amenable number.

30640010353 is a deficient number, since it is larger than the sum of its proper divisors (2310707).

30640010353 is a wasteful number, since it uses less digits than its factorization.

30640010353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310706.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 30640010353 its reverse (35301004603), we get a palindrome (65941014956).

The spelling of 30640010353 in words is "thirty billion, six hundred forty million, ten thousand, three hundred fifty-three".

Divisors: 1 13337 2297369 30640010353