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30212333213 = 149202767337
BaseRepresentation
bin11100001000110010…
…111001111010011101
32212222112211112210012
4130020302321322131
5443333324130323
621513535053005
72116455411056
oct341062717235
985875745705
1030212333213
11118a4090127
125a32071165
132b06379c5a
14166871b72d
15bbc5bc678
hex708cb9e9d

30212333213 has 4 divisors (see below), whose sum is σ = 30415100700. Its totient is φ = 30009565728.

The previous prime is 30212333209. The next prime is 30212333231. The reversal of 30212333213 is 31233321203.

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 1571171044 + 28641162169 = 39638^2 + 169237^2 .

It is a cyclic number.

It is not a de Polignac number, because 30212333213 - 22 = 30212333209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212333273) 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, 101383520 + ... + 101383817.

It is an arithmetic number, because the mean of its divisors is an integer number (7603775175).

Almost surely, 230212333213 is an apocalyptic number.

It is an amenable number.

30212333213 is a deficient number, since it is larger than the sum of its proper divisors (202767487).

30212333213 is a wasteful number, since it uses less digits than its factorization.

30212333213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202767486.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 30212333213 its reverse (31233321203), we get a palindrome (61445654416).

The spelling of 30212333213 in words is "thirty billion, two hundred twelve million, three hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 149 202767337 30212333213