Search a number
-
+
20300321113 = 43472100491
BaseRepresentation
bin10010111001111111…
…100101000101011001
31221101202122011100221
4102321333211011121
5313033340233423
613154214200041
71316026611442
oct227177450531
957352564327
1020300321113
118678002796
123b26653021
131bb6988937
14da81402c9
157dc2dee5d
hex4b9fe5159

20300321113 has 4 divisors (see below), whose sum is σ = 20772421648. Its totient is φ = 19828220580.

The previous prime is 20300321087. The next prime is 20300321141. The reversal of 20300321113 is 31112300302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20300321113 - 221 = 20298223961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20300324113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236050203 + ... + 236050288.

It is an arithmetic number, because the mean of its divisors is an integer number (5193105412).

Almost surely, 220300321113 is an apocalyptic number.

It is an amenable number.

20300321113 is a deficient number, since it is larger than the sum of its proper divisors (472100535).

20300321113 is an equidigital number, since it uses as much as digits as its factorization.

20300321113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472100534.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20300321113 its reverse (31112300302), we get a palindrome (51412621415).

The spelling of 20300321113 in words is "twenty billion, three hundred million, three hundred twenty-one thousand, one hundred thirteen".

Divisors: 1 43 472100491 20300321113