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20370170001 = 36790056667
BaseRepresentation
bin10010111110001010…
…000010000010010001
31221120122001212000210
4102332022002002101
5313204230420001
613205151234333
71320535405506
oct227612020221
957518055023
1020370170001
118703480245
123b45b189a9
131bc82a373c
14db35234ad
157e34dadd6
hex4be282091

20370170001 has 4 divisors (see below), whose sum is σ = 27160226672. Its totient is φ = 13580113332.

The previous prime is 20370169961. The next prime is 20370170003. The reversal of 20370170001 is 10007107302.

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 not a de Polignac number, because 20370170001 - 211 = 20370167953 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 20370170001.

It is not an unprimeable number, because it can be changed into a prime (20370170003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3395028331 + ... + 3395028336.

It is an arithmetic number, because the mean of its divisors is an integer number (6790056668).

Almost surely, 220370170001 is an apocalyptic number.

It is an amenable number.

20370170001 is a deficient number, since it is larger than the sum of its proper divisors (6790056671).

20370170001 is an equidigital number, since it uses as much as digits as its factorization.

20370170001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790056670.

The product of its (nonzero) digits is 294, while the sum is 21.

Adding to 20370170001 its reverse (10007107302), we get a palindrome (30377277303).

The spelling of 20370170001 in words is "twenty billion, three hundred seventy million, one hundred seventy thousand, one".

Divisors: 1 3 6790056667 20370170001