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20302103201 = 97209300033
BaseRepresentation
bin10010111010000110…
…011000001010100001
31221101212222200221012
4102322012120022201
5313034314300301
613154320310305
71316051013152
oct227206301241
957355880835
1020302103201
11867900a696
123b27172395
131bb7160b23
14da8485929
157dc542ebb
hex4ba1982a1

20302103201 has 4 divisors (see below), whose sum is σ = 20511403332. Its totient is φ = 20092803072.

The previous prime is 20302103147. The next prime is 20302103207. The reversal of 20302103201 is 10230120302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15060198400 + 5241904801 = 122720^2 + 72401^2 .

It is a cyclic number.

It is not a de Polignac number, because 20302103201 - 218 = 20301841057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302103207) 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, 104649920 + ... + 104650113.

It is an arithmetic number, because the mean of its divisors is an integer number (5127850833).

Almost surely, 220302103201 is an apocalyptic number.

It is an amenable number.

20302103201 is a deficient number, since it is larger than the sum of its proper divisors (209300131).

20302103201 is an equidigital number, since it uses as much as digits as its factorization.

20302103201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209300130.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20302103201 its reverse (10230120302), we get a palindrome (30532223503).

The spelling of 20302103201 in words is "twenty billion, three hundred two million, one hundred three thousand, two hundred one".

Divisors: 1 97 209300033 20302103201