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232303222021 = 13171507369737
BaseRepresentation
bin1101100001011001011…
…0011101110100000101
3211012121121111101111211
43120112112131310011
512301224111101041
6254415120131421
722532455543603
oct3302626356405
9735547441454
10232303222021
118a579127002
1239031a66b71
1318ba1916b30
14b35a396873
1560993a9481
hex361659dd05

232303222021 has 16 divisors (see below), whose sum is σ = 264910114224. Its totient is φ = 201803710464.

The previous prime is 232303221991. The next prime is 232303222037. The reversal of 232303222021 is 120222303232.

232303222021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 736308225 + 231566913796 = 27135^2 + 481214^2 .

It is a cyclic number.

It is not a de Polignac number, because 232303222021 - 27 = 232303221893 is a prime.

It is a super-2 number, since 2×2323032220212 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232303221983 and 232303222001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232303222621) 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 15 ways as a sum of consecutive naturals, for example, 3296265 + ... + 3366001.

It is an arithmetic number, because the mean of its divisors is an integer number (16556882139).

Almost surely, 2232303222021 is an apocalyptic number.

It is an amenable number.

232303222021 is a deficient number, since it is larger than the sum of its proper divisors (32606892203).

232303222021 is a wasteful number, since it uses less digits than its factorization.

232303222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84840.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 232303222021 its reverse (120222303232), we get a palindrome (352525525253).

The spelling of 232303222021 in words is "two hundred thirty-two billion, three hundred three million, two hundred twenty-two thousand, twenty-one".

Divisors: 1 13 17 221 15073 69737 195949 256241 906581 1185529 3331133 15411877 1051145801 13664895413 17869478617 232303222021