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20000232101 = 89224721709
BaseRepresentation
bin10010101000000110…
…110101001010100101
31220121211222001122002
4102220012311022211
5311430024411401
613104334215045
71305424111403
oct225006651245
956554861562
1020000232101
118533678443
123a62054485
131b69759485
14d7a346473
157c0cb4a6b
hex4a81b52a5

20000232101 has 4 divisors (see below), whose sum is σ = 20224953900. Its totient is φ = 19775510304.

The previous prime is 20000232089. The next prime is 20000232103. The reversal of 20000232101 is 10123200002.

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 14205064225 + 5795167876 = 119185^2 + 76126^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000232101 - 230 = 18926490277 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 (20000232103) 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, 112360766 + ... + 112360943.

It is an arithmetic number, because the mean of its divisors is an integer number (5056238475).

Almost surely, 220000232101 is an apocalyptic number.

It is an amenable number.

20000232101 is a deficient number, since it is larger than the sum of its proper divisors (224721799).

20000232101 is an equidigital number, since it uses as much as digits as its factorization.

20000232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224721798.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20000232101 its reverse (10123200002), we get a palindrome (30123432103).

The spelling of 20000232101 in words is "twenty billion, two hundred thirty-two thousand, one hundred one".

Divisors: 1 89 224721709 20000232101