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20120302101 = 36739965479
BaseRepresentation
bin10010101111010000…
…110111001000010101
31220221012220020201010
4102233100313020111
5312201244131401
613124303522433
71311412513614
oct225720671025
956835806633
1020120302101
118595427849
123a962b9419
131b885a9203
14d8c27d87b
157cb5d0ed6
hex4af437215

20120302101 has 8 divisors (see below), whose sum is σ = 26866934080. Its totient is φ = 13393602432.

The previous prime is 20120302099. The next prime is 20120302133. The reversal of 20120302101 is 10120302102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20120302101 - 21 = 20120302099 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 (20120302201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4980721 + ... + 4984758.

It is an arithmetic number, because the mean of its divisors is an integer number (3358366760).

Almost surely, 220120302101 is an apocalyptic number.

It is an amenable number.

20120302101 is a deficient number, since it is larger than the sum of its proper divisors (6746631979).

20120302101 is an equidigital number, since it uses as much as digits as its factorization.

20120302101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9966155.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20120302101 its reverse (10120302102), we get a palindrome (30240604203).

Subtracting from 20120302101 its reverse (10120302102), we obtain a palindrome (9999999999).

The spelling of 20120302101 in words is "twenty billion, one hundred twenty million, three hundred two thousand, one hundred one".

Divisors: 1 3 673 2019 9965479 29896437 6706767367 20120302101