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20024242424 = 2319314249627
BaseRepresentation
bin10010101001100010…
…011011000011111000
31220200112010220121022
4102221202123003320
5312002201224144
613110553002012
71306135152344
oct225142330370
956615126538
1020024242424
11854618778a
123a6a0b3308
131b71715074
14d7d5d6624
157c2e58cee
hex4a989b0f8

20024242424 has 32 divisors (see below), whose sum is σ = 40796428800. Its totient is φ = 9179192160.

The previous prime is 20024242423. The next prime is 20024242477. The reversal of 20024242424 is 42424242002.

20024242424 is a modest number, since divided by 242424 gives 20024 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 20024242393 and 20024242402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20024242423) 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, 2120102 + ... + 2129525.

It is an arithmetic number, because the mean of its divisors is an integer number (1274888400).

Almost surely, 220024242424 is an apocalyptic number.

It is an amenable number.

20024242424 is an abundant number, since it is smaller than the sum of its proper divisors (20772186376).

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

20024242424 is a wasteful number, since it uses less digits than its factorization.

20024242424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249683 (or 4249679 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20024242424 its reverse (42424242002), we get a palindrome (62448484426).

The spelling of 20024242424 in words is "twenty billion, twenty-four million, two hundred forty-two thousand, four hundred twenty-four".

Divisors: 1 2 4 8 19 31 38 62 76 124 152 248 589 1178 2356 4712 4249627 8499254 16998508 33997016 80742913 131738437 161485826 263476874 322971652 526953748 645943304 1053907496 2503030303 5006060606 10012121212 20024242424