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20020400024044 = 2271096559764097
BaseRepresentation
bin1001000110101010111001…
…10101001110100111101100
32121212221011002201002201211
410203111130311032213230
510111003234401232134
6110325124513244204
74134266114250430
oct443253465164754
977787132632654
1020020400024044
116419670979042
1222b4107563664
13b22bb980ab94
144d2dc77129c0
1524ab9acbc764
hex12355cd4e9ec

20020400024044 has 24 divisors (see below), whose sum is σ = 40408146843680. Its totient is φ = 8501454268416.

The previous prime is 20020400024041. The next prime is 20020400024071. The reversal of 20020400024044 is 44042000402002.

It is a super-4 number, since 4×200204000240444 (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20020400024041) 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, 3279878997 + ... + 3279885100.

Almost surely, 220020400024044 is an apocalyptic number.

It is an amenable number.

20020400024044 is an abundant number, since it is smaller than the sum of its proper divisors (20387746819636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020400024044 is a wasteful number, since it uses less digits than its factorization.

20020400024044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6559764217 (or 6559764215 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20020400024044 its reverse (44042000402002), we get a palindrome (64062400426046).

The spelling of 20020400024044 in words is "twenty trillion, twenty billion, four hundred million, twenty-four thousand, forty-four".

Divisors: 1 2 4 7 14 28 109 218 436 763 1526 3052 6559764097 13119528194 26239056388 45918348679 91836697358 183673394716 715014286573 1430028573146 2860057146292 5005100006011 10010200012022 20020400024044