Search a number
-
+
20290100201 = 72898585743
BaseRepresentation
bin10010111001011000…
…100101101111101001
31221101001101212220122
4102321120211233221
5313023231201301
613153211133025
71315544002040
oct227130455751
957331355818
1020290100201
118672261658
123b23144175
131bb481a667
14da6a3d557
157db47181b
hex4b9625be9

20290100201 has 4 divisors (see below), whose sum is σ = 23188685952. Its totient is φ = 17391514452.

The previous prime is 20290100179. The next prime is 20290100231. The reversal of 20290100201 is 10200109202.

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 20290100201 - 26 = 20290100137 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 20290100201.

It is not an unprimeable number, because it can be changed into a prime (20290100231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1449292865 + ... + 1449292878.

It is an arithmetic number, because the mean of its divisors is an integer number (5797171488).

Almost surely, 220290100201 is an apocalyptic number.

It is an amenable number.

20290100201 is a deficient number, since it is larger than the sum of its proper divisors (2898585751).

20290100201 is an equidigital number, since it uses as much as digits as its factorization.

20290100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898585750.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20290100201 its reverse (10200109202), we get a palindrome (30490209403).

The spelling of 20290100201 in words is "twenty billion, two hundred ninety million, one hundred thousand, two hundred one".

Divisors: 1 7 2898585743 20290100201