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202030213331 = 286499705169
BaseRepresentation
bin1011110000100111110…
…0000110100011010011
3201022110211111012121202
42330021330012203103
511302224213311311
6232451132341415
720411332323212
oct2741174064323
9638424435552
10202030213331
1178753874561
12331a361486b
1316088b1463b
149ac79a3079
1553c6803e3b
hex2f09f068d3

202030213331 has 4 divisors (see below), whose sum is σ = 202031205000. Its totient is φ = 202029221664.

The previous prime is 202030213309. The next prime is 202030213381. The reversal of 202030213331 is 133312030202.

202030213331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 is a cyclic number.

It is not a de Polignac number, because 202030213331 - 214 = 202030196947 is a prime.

It is a super-2 number, since 2×2020302133312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202030213381) 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, 66086 + ... + 639083.

It is an arithmetic number, because the mean of its divisors is an integer number (50507801250).

Almost surely, 2202030213331 is an apocalyptic number.

202030213331 is a deficient number, since it is larger than the sum of its proper divisors (991669).

202030213331 is an equidigital number, since it uses as much as digits as its factorization.

202030213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991668.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 202030213331 its reverse (133312030202), we get a palindrome (335342243533).

The spelling of 202030213331 in words is "two hundred two billion, thirty million, two hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 286499 705169 202030213331