Search a number
-
+
20203030101 = 35973101113137
BaseRepresentation
bin10010110100001100…
…011100011001010101
31221010222120021012010
4102310030130121111
5312333433430401
613140421014433
71313435631252
oct226414343125
957128507163
1020203030101
1186280a15a1
123ab9b54419
131b9c7831a7
14d99256429
157d39c2ed6
hex4b431c655

20203030101 has 64 divisors (see below), whose sum is σ = 28498832640. Its totient is φ = 12721766400.

The previous prime is 20203030073. The next prime is 20203030103. The reversal of 20203030101 is 10103030202.

It is a happy number.

It is not a de Polignac number, because 20203030101 - 217 = 20202899029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203030103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147467305 + ... + 147467441.

It is an arithmetic number, because the mean of its divisors is an integer number (445294260).

Almost surely, 220203030101 is an apocalyptic number.

It is an amenable number.

20203030101 is a deficient number, since it is larger than the sum of its proper divisors (8295802539).

20203030101 is a wasteful number, since it uses less digits than its factorization.

20203030101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20203030101 its reverse (10103030202), we get a palindrome (30306060303).

The spelling of 20203030101 in words is "twenty billion, two hundred three million, thirty thousand, one hundred one".

Divisors: 1 3 59 73 101 113 137 177 219 303 339 411 4307 5959 6667 7373 8083 8249 10001 11413 12921 13837 15481 17877 20001 22119 24249 24747 30003 34239 41511 46443 435007 486691 590059 673367 816383 833149 913379 1010101 1130113 1305021 1460073 1563581 1770177 2020101 2449149 2499447 2740137 3030303 3390339 4690743 49155791 59595959 66676667 92251279 114141413 147467373 178787877 200030001 276753837 342424239 6734343367 20203030101