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20033122005 = 32513228115013
BaseRepresentation
bin10010101010000100…
…010010111011010101
31220201010212001002200
4102222010102323111
5312011434401010
613111511155113
71306303504341
oct225204227325
956633761080
1020033122005
1185501a2086
123a71075a99
131b73503960
14d80868621
157c3b0ecc0
hex4aa112ed5

20033122005 has 48 divisors (see below), whose sum is σ = 37414047216. Its totient is φ = 9857479680.

The previous prime is 20033122003. The next prime is 20033122027. The reversal of 20033122005 is 50022133002.

It can be written as a sum of positive squares in 8 ways, for example, as 180875601 + 19852246404 = 13449^2 + 140898^2 .

It is not a de Polignac number, because 20033122005 - 21 = 20033122003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033122001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1326879 + ... + 1341891.

It is an arithmetic number, because the mean of its divisors is an integer number (779459317).

Almost surely, 220033122005 is an apocalyptic number.

It is an amenable number.

20033122005 is a deficient number, since it is larger than the sum of its proper divisors (17380925211).

20033122005 is a wasteful number, since it uses less digits than its factorization.

20033122005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17318 (or 17315 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 20033122005 its reverse (50022133002), we get a palindrome (70055255007).

The spelling of 20033122005 in words is "twenty billion, thirty-three million, one hundred twenty-two thousand, five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 2281 6843 11405 15013 20529 29653 34215 45039 75065 88959 102645 135117 148265 195169 225195 266877 444795 585507 675585 975845 1334385 1756521 2927535 8782605 34244653 102733959 171223265 308201877 445180489 513669795 1335541467 1541009385 2225902445 4006624401 6677707335 20033122005