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20004310016 = 21043454313
BaseRepresentation
bin10010101000010110…
…011000110000000000
31220122010122020110222
4102220112120300000
5311432100410031
613105001442212
71305503554355
oct225026306000
956563566428
1020004310016
118535a03219
123a634a0368
131b6a556642
14d7aac862c
157c131ce7b
hex4a8598c00

20004310016 has 44 divisors (see below), whose sum is σ = 40919153352. Its totient is φ = 9769525248.

The previous prime is 20004309979. The next prime is 20004310019. The reversal of 20004310016 is 61001340002.

It is a junction number, because it is equal to n+sod(n) for n = 20004309976 and 20004310003.

It is not an unprimeable number, because it can be changed into a prime (20004310019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183125 + ... + 271188.

It is an arithmetic number, because the mean of its divisors is an integer number (929980758).

Almost surely, 220004310016 is an apocalyptic number.

It is an amenable number.

20004310016 is an abundant number, since it is smaller than the sum of its proper divisors (20914843336).

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

20004310016 is an equidigital number, since it uses as much as digits as its factorization.

20004310016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454376 (or 454358 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20004310016 its reverse (61001340002), we get a palindrome (81005650018).

The spelling of 20004310016 in words is "twenty billion, four million, three hundred ten thousand, sixteen".

Divisors: 1 2 4 8 16 32 43 64 86 128 172 256 344 512 688 1024 1376 2752 5504 11008 22016 44032 454313 908626 1817252 3634504 7269008 14538016 19535459 29076032 39070918 58152064 78141836 116304128 156283672 232608256 312567344 465216512 625134688 1250269376 2500538752 5001077504 10002155008 20004310016