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20104444243 = 1315017102983
BaseRepresentation
bin10010101110010100…
…010111100101010011
31220220010001120211001
4102232110113211103
5312133214203433
613122540002431
71311130646032
oct225624274523
956803046731
1020104444243
118587486584
123a90b30417
131b85216270
14d8a112719
157c9eec57d
hex4ae517953

20104444243 has 8 divisors (see below), whose sum is σ = 21652591968. Its totient is φ = 18556532544.

The previous prime is 20104444201. The next prime is 20104444301. The reversal of 20104444243 is 34244440102.

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 20104444243 - 221 = 20102347091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20104444543) 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, 143730 + ... + 246712.

It is an arithmetic number, because the mean of its divisors is an integer number (2706573996).

Almost surely, 220104444243 is an apocalyptic number.

20104444243 is a deficient number, since it is larger than the sum of its proper divisors (1548147725).

20104444243 is a wasteful number, since it uses less digits than its factorization.

20104444243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118013.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20104444243 its reverse (34244440102), we get a palindrome (54348884345).

The spelling of 20104444243 in words is "twenty billion, one hundred four million, four hundred forty-four thousand, two hundred forty-three".

Divisors: 1 13 15017 102983 195221 1338779 1546495711 20104444243