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21330130213 = 74272771317
BaseRepresentation
bin10011110111010111…
…111111010100100101
32001001112101212212201
4103313113333110211
5322141003131323
613444322414501
71353403054360
oct236727772445
961045355781
1021330130213
119056336597
124173501431
13201c131c32
141064c0b0d7
1584c90d8ad
hex4f75ff525

21330130213 has 8 divisors (see below), whose sum is σ = 24378204032. Its totient is φ = 18282284496.

The previous prime is 21330130201. The next prime is 21330130219. The reversal of 21330130213 is 31203103312.

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

It is not a de Polignac number, because 21330130213 - 25 = 21330130181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330130219) 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 7 ways as a sum of consecutive naturals, for example, 263431 + ... + 334747.

It is an arithmetic number, because the mean of its divisors is an integer number (3047275504).

Almost surely, 221330130213 is an apocalyptic number.

It is an amenable number.

21330130213 is a deficient number, since it is larger than the sum of its proper divisors (3048073819).

21330130213 is an equidigital number, since it uses as much as digits as its factorization.

21330130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114051.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21330130213 its reverse (31203103312), we get a palindrome (52533233525).

The spelling of 21330130213 in words is "twenty-one billion, three hundred thirty million, one hundred thirty thousand, two hundred thirteen".

Divisors: 1 7 42727 71317 299089 499219 3047161459 21330130213