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10030322221 = 10199310121
BaseRepresentation
bin10010101011101101…
…01001001000101101
3221220000211011101121
421111312221020231
5131020230302341
64335144340541
7503363221633
oct112566511055
927800734347
1010030322221
1142879455a7
121b3b174751
13c3b07600a
146b21b7353
153da89c4d1
hex255da922d

10030322221 has 4 divisors (see below), whose sum is σ = 10129632444. Its totient is φ = 9931012000.

The previous prime is 10030322209. The next prime is 10030322231. The reversal of 10030322221 is 12222303001.

10030322221 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 an emirpimes, since its reverse is a distinct semiprime: 12222303001 = 101121012901.

It can be written as a sum of positive squares in 2 ways, for example, as 8309234025 + 1721088196 = 91155^2 + 41486^2 .

It is a cyclic number.

It is not a de Polignac number, because 10030322221 - 213 = 10030314029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10030322195 and 10030322204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10030322231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49654960 + ... + 49655161.

It is an arithmetic number, because the mean of its divisors is an integer number (2532408111).

Almost surely, 210030322221 is an apocalyptic number.

It is an amenable number.

10030322221 is a deficient number, since it is larger than the sum of its proper divisors (99310223).

10030322221 is an equidigital number, since it uses as much as digits as its factorization.

10030322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99310222.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 10030322221 its reverse (12222303001), we get a palindrome (22252625222).

The spelling of 10030322221 in words is "ten billion, thirty million, three hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 101 99310121 10030322221