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20033201223 = 3271732696833
BaseRepresentation
bin10010101010000100…
…100110010001000111
31220201011000001202200
4102222010212101013
5312011444414343
613111513005543
71306304254320
oct225204462107
956634001680
1020033201223
118550246652
123a710b38b3
131b73530a29
14d80889447
157c3b284d3
hex4aa126447

20033201223 has 48 divisors (see below), whose sum is σ = 33390377280. Its totient is φ = 11337403392.

The previous prime is 20033201213. The next prime is 20033201231. The reversal of 20033201223 is 32210233002.

It is a happy number.

It is not a de Polignac number, because 20033201223 - 25 = 20033201191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20033201196 and 20033201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033201203) 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, 2928415 + ... + 2935247.

It is an arithmetic number, because the mean of its divisors is an integer number (695632860).

Almost surely, 220033201223 is an apocalyptic number.

20033201223 is a deficient number, since it is larger than the sum of its proper divisors (13357176057).

20033201223 is a wasteful number, since it uses less digits than its factorization.

20033201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7288 (or 7285 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20033201223 its reverse (32210233002), we get a palindrome (52243434225).

The spelling of 20033201223 in words is "twenty billion, thirty-three million, two hundred one thousand, two hundred twenty-three".

Divisors: 1 3 7 9 21 63 173 269 519 807 1211 1557 1883 2421 3633 5649 6833 10899 16947 20499 46537 47831 61497 139611 143493 325759 418833 430479 977277 1182109 1838077 2931831 3546327 5514231 8274763 10638981 12866539 16542693 24824289 38599617 74472867 115798851 317987321 953961963 2225911247 2861885889 6677733741 20033201223