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20002024404 = 22321429338873
BaseRepresentation
bin10010101000001101…
…101010101111010100
31220121222100010012200
4102220031222233110
5311431004240104
613104440444500
71305445254645
oct225015525724
956558303180
1020002024404
118534691a8a
123a62779730
131b69c361cb
14d7a6916cc
157c101ab39
hex4a836abd4

20002024404 has 36 divisors (see below), whose sum is σ = 50565510996. Its totient is φ = 6666703488.

The previous prime is 20002024403. The next prime is 20002024421. The reversal of 20002024404 is 40442020002.

20002024404 is a `hidden beast` number, since 20 + 0 + 0 + 202 + 440 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9780814404 + 10221210000 = 98898^2 + 101100^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002024403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 495112 + ... + 533984.

Almost surely, 220002024404 is an apocalyptic number.

It is an amenable number.

20002024404 is an abundant number, since it is smaller than the sum of its proper divisors (30563486592).

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

20002024404 is a wasteful number, since it uses less digits than its factorization.

20002024404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53176 (or 53171 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20002024404 its reverse (40442020002), we get a palindrome (60444044406).

The spelling of 20002024404 in words is "twenty billion, two million, twenty-four thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 14293 28586 38873 42879 57172 77746 85758 116619 128637 155492 171516 233238 257274 349857 466476 514548 699714 1399428 555611789 1111223578 1666835367 2222447156 3333670734 5000506101 6667341468 10001012202 20002024404