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20321230101 = 326729253423
BaseRepresentation
bin10010111011001111…
…010101110100010101
31221110012222110002220
4102323033111310111
5313104213330401
613200242252553
71316402414544
oct227317256425
957405873086
1020321230101
118688893a47
123b31657159
131bbb0c9a13
14daac2415b
157de070336
hex4bb3d5d15

20321230101 has 8 divisors (see below), whose sum is σ = 27096094080. Its totient is φ = 13546926432.

The previous prime is 20321230099. The next prime is 20321230103. The reversal of 20321230101 is 10103212302.

It is an interprime number because it is at equal distance from previous prime (20321230099) and next prime (20321230103).

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

It is not a de Polignac number, because 20321230101 - 21 = 20321230099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321230103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46525 + ... + 206898.

It is an arithmetic number, because the mean of its divisors is an integer number (3387011760).

Almost surely, 220321230101 is an apocalyptic number.

It is an amenable number.

20321230101 is a deficient number, since it is larger than the sum of its proper divisors (6774863979).

20321230101 is a wasteful number, since it uses less digits than its factorization.

20321230101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280155.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20321230101 its reverse (10103212302), we get a palindrome (30424442403).

The spelling of 20321230101 in words is "twenty billion, three hundred twenty-one million, two hundred thirty thousand, one hundred one".

Divisors: 1 3 26729 80187 253423 760269 6773743367 20321230101