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30714013021 = 122117251513
BaseRepresentation
bin11100100110101100…
…101010010101011101
32221021111211112002211
4130212230222111131
51000400241404041
622035415520421
72135056542316
oct344654522535
987244745084
1030714013021
111203129463a
125b52089111
132b8629c803
1416b51cd60d
15beb668481
hex726b2a55d

30714013021 has 4 divisors (see below), whose sum is σ = 30714386652. Its totient is φ = 30713639392.

The previous prime is 30714013009. The next prime is 30714013049. The reversal of 30714013021 is 12031041703.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 27579244900 + 3134768121 = 166070^2 + 55989^2 .

It is a cyclic number.

It is not a de Polignac number, because 30714013021 - 217 = 30713881949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30714012983 and 30714013001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30714013061) 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 3 ways as a sum of consecutive naturals, for example, 3640 + ... + 247873.

It is an arithmetic number, because the mean of its divisors is an integer number (7678596663).

Almost surely, 230714013021 is an apocalyptic number.

It is an amenable number.

30714013021 is a deficient number, since it is larger than the sum of its proper divisors (373631).

30714013021 is a wasteful number, since it uses less digits than its factorization.

30714013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373630.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 30714013021 its reverse (12031041703), we get a palindrome (42745054724).

The spelling of 30714013021 in words is "thirty billion, seven hundred fourteen million, thirteen thousand, twenty-one".

Divisors: 1 122117 251513 30714013021