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20320000301 = 69072941943
BaseRepresentation
bin10010111011001010…
…101001100100101101
31221110010122222010202
4102323022221210231
5313103410002201
613200200043245
71316356103246
oct227312514455
957403588122
1020320000301
118688123a87
123b31163525
131bbaa89023
14daa9c3ccd
157dddcac6b
hex4bb2a992d

20320000301 has 4 divisors (see below), whose sum is σ = 20322949152. Its totient is φ = 20317051452.

The previous prime is 20320000271. The next prime is 20320000303. The reversal of 20320000301 is 10300002302.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10300002302 = 25150001151.

It is a cyclic number.

It is not a de Polignac number, because 20320000301 - 222 = 20315805997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320000303) 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, 1464065 + ... + 1477878.

It is an arithmetic number, because the mean of its divisors is an integer number (5080737288).

Almost surely, 220320000301 is an apocalyptic number.

It is an amenable number.

20320000301 is a deficient number, since it is larger than the sum of its proper divisors (2948851).

20320000301 is an equidigital number, since it uses as much as digits as its factorization.

20320000301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948850.

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20320000301 its reverse (10300002302), we get a palindrome (30620002603).

The spelling of 20320000301 in words is "twenty billion, three hundred twenty million, three hundred one", and thus it is an aban number.

Divisors: 1 6907 2941943 20320000301