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30212033231213 = 107282355450759
BaseRepresentation
bin1101101111010010010011…
…00000100011100101101101
310221222020112112121220222122
412313221021200203211231
512424443221001344323
6144131114431122325
76235514230204031
oct667511140434555
9127866475556878
1030212033231213
119698940150a39
12347b3649733a5
1313b1ca0759882
147663ad65a1c1
15375d3e884ec8
hex1b7a4982396d

30212033231213 has 4 divisors (see below), whose sum is σ = 30494388682080. Its totient is φ = 29929677780348.

The previous prime is 30212033231203. The next prime is 30212033231279. The reversal of 30212033231213 is 31213233021203.

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 30212033231213 - 28 = 30212033230957 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 (30212033231203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141177725273 + ... + 141177725486.

It is an arithmetic number, because the mean of its divisors is an integer number (7623597170520).

Almost surely, 230212033231213 is an apocalyptic number.

It is an amenable number.

30212033231213 is a deficient number, since it is larger than the sum of its proper divisors (282355450867).

30212033231213 is a wasteful number, since it uses less digits than its factorization.

30212033231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282355450866.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 30212033231213 its reverse (31213233021203), we get a palindrome (61425266252416).

The spelling of 30212033231213 in words is "thirty trillion, two hundred twelve billion, thirty-three million, two hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 107 282355450759 30212033231213