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20330213061 = 323294640769
BaseRepresentation
bin10010111011110001…
…100110111011000101
31221110211212211102010
4102323301212323011
5313114013304221
613201203004433
71316541650124
oct227361467305
957424784363
1020330213061
118692969a84
123b34669719
131bbcc23692
14dac0c1abb
157dec46c76
hex4bbc66ec5

20330213061 has 8 divisors (see below), whose sum is σ = 28285513920. Its totient is φ = 12964193792.

The previous prime is 20330213053. The next prime is 20330213063. The reversal of 20330213061 is 16031203302.

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 20330213061 - 23 = 20330213053 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 (20330213063) 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, 147320316 + ... + 147320453.

It is an arithmetic number, because the mean of its divisors is an integer number (3535689240).

Almost surely, 220330213061 is an apocalyptic number.

It is an amenable number.

20330213061 is a deficient number, since it is larger than the sum of its proper divisors (7955300859).

20330213061 is a wasteful number, since it uses less digits than its factorization.

20330213061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294640795.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20330213061 its reverse (16031203302), we get a palindrome (36361416363).

The spelling of 20330213061 in words is "twenty billion, three hundred thirty million, two hundred thirteen thousand, sixty-one".

Divisors: 1 3 23 69 294640769 883922307 6776737687 20330213061