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21300132101 = 29147730783
BaseRepresentation
bin10011110101100101…
…100011100100000101
32000222102221211012112
4103311211203210011
5322110313211401
613441331430405
71352560064333
oct236545434405
960872854175
1021300132101
119040407566
124165455405
132015b5aa81
141060c3cb53
15849e853bb
hex4f5963905

21300132101 has 4 divisors (see below), whose sum is σ = 21300892032. Its totient is φ = 21299372172.

The previous prime is 21300132037. The next prime is 21300132107. The reversal of 21300132101 is 10123100312.

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.

It is a cyclic number.

It is not a de Polignac number, because 21300132101 - 26 = 21300132037 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 (21300132107) 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 3 ways as a sum of consecutive naturals, for example, 336245 + ... + 394538.

It is an arithmetic number, because the mean of its divisors is an integer number (5325223008).

Almost surely, 221300132101 is an apocalyptic number.

It is an amenable number.

21300132101 is a deficient number, since it is larger than the sum of its proper divisors (759931).

21300132101 is an equidigital number, since it uses as much as digits as its factorization.

21300132101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759930.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21300132101 its reverse (10123100312), we get a palindrome (31423232413).

The spelling of 21300132101 in words is "twenty-one billion, three hundred million, one hundred thirty-two thousand, one hundred one".

Divisors: 1 29147 730783 21300132101