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30234321321 = 310078107107
BaseRepresentation
bin11100001010000110…
…110010000110101001
32220001002012122210120
4130022012302012221
5443404441240241
621520042233453
72120143330251
oct341206620651
986032178716
1030234321321
1111905539116
125a394b5889
132b0aaa8279
14166b602961
15bbe4b2666
hex70a1b21a9

30234321321 has 4 divisors (see below), whose sum is σ = 40312428432. Its totient is φ = 20156214212.

The previous prime is 30234321283. The next prime is 30234321331. The reversal of 30234321321 is 12312343203.

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.

It is a cyclic number.

It is not a de Polignac number, because 30234321321 - 225 = 30200766889 is a prime.

It is a super-2 number, since 2×302343213212 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30234321291 and 30234321300.

It is not an unprimeable number, because it can be changed into a prime (30234321331) 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, 5039053551 + ... + 5039053556.

It is an arithmetic number, because the mean of its divisors is an integer number (10078107108).

Almost surely, 230234321321 is an apocalyptic number.

It is an amenable number.

30234321321 is a deficient number, since it is larger than the sum of its proper divisors (10078107111).

30234321321 is a wasteful number, since it uses less digits than its factorization.

30234321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10078107110.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 30234321321 its reverse (12312343203), we get a palindrome (42546664524).

The spelling of 30234321321 in words is "thirty billion, two hundred thirty-four million, three hundred twenty-one thousand, three hundred twenty-one".

Divisors: 1 3 10078107107 30234321321