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21033200213 = 43910953699
BaseRepresentation
bin10011100101101011…
…010010101001010101
32000021211200021111022
4103211223102221111
5321033444401323
613355034250525
71343136152264
oct234553225125
960254607438
1021033200213
118a137696a3
1240abb86a45
131ca276a5cc
1410375d65db
158318094c8
hex4e5ad2a55

21033200213 has 8 divisors (see below), whose sum is σ = 21525108000. Its totient is φ = 20541418128.

The previous prime is 21033200191. The next prime is 21033200219. The reversal of 21033200213 is 31200233012.

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

It is a cyclic number.

It is not a de Polignac number, because 21033200213 - 210 = 21033199189 is a prime.

It is a super-2 number, since 2×210332002132 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21033200191 and 21033200200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033200219) 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, 364838 + ... + 418536.

It is an arithmetic number, because the mean of its divisors is an integer number (2690638500).

Almost surely, 221033200213 is an apocalyptic number.

It is an amenable number.

21033200213 is a deficient number, since it is larger than the sum of its proper divisors (491907787).

21033200213 is an equidigital number, since it uses as much as digits as its factorization.

21033200213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62851.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21033200213 its reverse (31200233012), we get a palindrome (52233433225).

The spelling of 21033200213 in words is "twenty-one billion, thirty-three million, two hundred thousand, two hundred thirteen".

Divisors: 1 43 9109 53699 391687 2309057 489144191 21033200213