Search a number
-
+
3102012122221 = 29891201864441
BaseRepresentation
bin101101001000111110010…
…101001010010001101101
3101222112211120002000111001
4231020332111022101231
5401310410100402341
610333013353200301
7440053515663115
oct55107625122155
911875746060431
103102012122221
11a96612a79001
12421235700091
1319669816c4bc
14aa1d128a045
1555a55437d31
hex2d23e54a46d

3102012122221 has 8 divisors (see below), whose sum is σ = 3245033993400. Its totient is φ = 2961393980160.

The previous prime is 3102012122191. The next prime is 3102012122273. The reversal of 3102012122221 is 1222212102013.

3102012122221 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 4 ways, for example, as 516393146025 + 2585618976196 = 718605^2 + 1607986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3102012122221 - 215 = 3102012089453 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 (3102012125221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600929640 + ... + 600934801.

It is an arithmetic number, because the mean of its divisors is an integer number (405629249175).

Almost surely, 23102012122221 is an apocalyptic number.

It is an amenable number.

3102012122221 is a deficient number, since it is larger than the sum of its proper divisors (143021871179).

3102012122221 is a wasteful number, since it uses less digits than its factorization.

3102012122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201864559.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 3102012122221 its reverse (1222212102013), we get a palindrome (4324224224234).

The spelling of 3102012122221 in words is "three trillion, one hundred two billion, twelve million, one hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 29 89 2581 1201864441 34854068789 106965935249 3102012122221