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20301210001 = 85923633539
BaseRepresentation
bin10010111010000010…
…111110000110010001
31221101211022022200201
4102322002332012101
5313034102210001
613154245215201
71316040303112
oct227202760621
957354268621
1020301210001
11867855a606
123b26a01501
131bb6c0a3c7
14da82d2209
157dc418501
hex4ba0be191

20301210001 has 4 divisors (see below), whose sum is σ = 20324844400. Its totient is φ = 20277575604.

The previous prime is 20301209899. The next prime is 20301210029. The reversal of 20301210001 is 10001210302.

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 a de Polignac number, because none of the positive numbers 2k-20301210001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20301210001.

It is not an unprimeable number, because it can be changed into a prime (20301210701) 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, 11815911 + ... + 11817628.

It is an arithmetic number, because the mean of its divisors is an integer number (5081211100).

Almost surely, 220301210001 is an apocalyptic number.

It is an amenable number.

20301210001 is a deficient number, since it is larger than the sum of its proper divisors (23634399).

20301210001 is an equidigital number, since it uses as much as digits as its factorization.

20301210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23634398.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20301210001 its reverse (10001210302), we get a palindrome (30302420303).

The spelling of 20301210001 in words is "twenty billion, three hundred one million, two hundred ten thousand, one".

Divisors: 1 859 23633539 20301210001