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30340313989 = 191596858631
BaseRepresentation
bin11100010000011011…
…000111001110000101
32220022110122122101221
4130100123013032011
5444114110021424
621534350120341
72122601261626
oct342033071605
986273578357
1030340313989
111195a352a67
125a68ab00b1
132b26a3961b
14167b713a4d
15bc894c9e4
hex7106c7385

30340313989 has 4 divisors (see below), whose sum is σ = 31937172640. Its totient is φ = 28743455340.

The previous prime is 30340313987. The next prime is 30340313999. The reversal of 30340313989 is 98931304303.

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 30340313989 - 21 = 30340313987 is a prime.

It is a super-2 number, since 2×303403139892 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30340313981) 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, 798429297 + ... + 798429334.

It is an arithmetic number, because the mean of its divisors is an integer number (7984293160).

Almost surely, 230340313989 is an apocalyptic number.

It is an amenable number.

30340313989 is a deficient number, since it is larger than the sum of its proper divisors (1596858651).

30340313989 is a wasteful number, since it uses less digits than its factorization.

30340313989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596858650.

The product of its (nonzero) digits is 209952, while the sum is 43.

The spelling of 30340313989 in words is "thirty billion, three hundred forty million, three hundred thirteen thousand, nine hundred eighty-nine".

Divisors: 1 19 1596858631 30340313989