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20300103331 = 23387124907
BaseRepresentation
bin10010111001111110…
…101111111010100011
31221101202020002121221
4102321332233322203
5313033311301311
613154205355511
71316025013504
oct227176577243
957352202557
1020300103331
118677974102
123b26568b97
131bb6910781
14da80c4bab
157dc29a671
hex4b9fafea3

20300103331 has 4 divisors (see below), whose sum is σ = 20387228472. Its totient is φ = 20212978192.

The previous prime is 20300103287. The next prime is 20300103349. The reversal of 20300103331 is 13330100302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20300103331 is a prime.

It is a super-2 number, since 2×203001033312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20300103731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43562221 + ... + 43562686.

It is an arithmetic number, because the mean of its divisors is an integer number (5096807118).

Almost surely, 220300103331 is an apocalyptic number.

20300103331 is a deficient number, since it is larger than the sum of its proper divisors (87125141).

20300103331 is an equidigital number, since it uses as much as digits as its factorization.

20300103331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87125140.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20300103331 its reverse (13330100302), we get a palindrome (33630203633).

The spelling of 20300103331 in words is "twenty billion, three hundred million, one hundred three thousand, three hundred thirty-one".

Divisors: 1 233 87124907 20300103331