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20012042024 = 2313192423481
BaseRepresentation
bin10010101000110011…
…111000011100101000
31220122200012001210122
4102220303320130220
5311441040321044
613105435302412
71305626356562
oct225063703450
956580161718
1020012042024
11853a304407
123a65baaa08
131b6c032ab0
14d7bb3c332
157c1d48dee
hex4a8cf8728

20012042024 has 16 divisors (see below), whose sum is σ = 40408931220. Its totient is φ = 9236327040.

The previous prime is 20012041981. The next prime is 20012042053. The reversal of 20012042024 is 42024021002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17728922500 + 2283119524 = 133150^2 + 47782^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20012041993 and 20012042011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96211637 + ... + 96211844.

Almost surely, 220012042024 is an apocalyptic number.

It is an amenable number.

20012042024 is an abundant number, since it is smaller than the sum of its proper divisors (20396889196).

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

20012042024 is a wasteful number, since it uses less digits than its factorization.

20012042024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192423500 (or 192423496 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20012042024 its reverse (42024021002), we get a palindrome (62036063026).

The spelling of 20012042024 in words is "twenty billion, twelve million, forty-two thousand, twenty-four".

Divisors: 1 2 4 8 13 26 52 104 192423481 384846962 769693924 1539387848 2501505253 5003010506 10006021012 20012042024