Search a number
-
+
20131230301233 = 3196741945727529
BaseRepresentation
bin1001001001111001010101…
…10101001011110000110001
32122021112020001102112021220
410210330222311023300301
510114312224424114413
6110452054242535253
74145301440126202
oct444745265136061
978245201375256
1020131230301233
116461674759747
122311698367529
13b304a002bb5c
144d84dcca35a9
1524d9d5c1d223
hex124f2ad4bc31

20131230301233 has 64 divisors (see below), whose sum is σ = 28808449152000. Its totient is φ = 12467007489024.

The previous prime is 20131230301163. The next prime is 20131230301333. The reversal of 20131230301233 is 33210303213102.

It is not a de Polignac number, because 20131230301233 - 221 = 20131228204081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20131230301033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 731259813 + ... + 731287341.

It is an arithmetic number, because the mean of its divisors is an integer number (450132018000).

Almost surely, 220131230301233 is an apocalyptic number.

It is an amenable number.

20131230301233 is a deficient number, since it is larger than the sum of its proper divisors (8677218850767).

20131230301233 is a wasteful number, since it uses less digits than its factorization.

20131230301233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28494.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20131230301233 its reverse (33210303213102), we get a palindrome (53341533514335).

The spelling of 20131230301233 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty million, three hundred one thousand, two hundred thirty-three".

Divisors: 1 3 19 57 67 201 419 457 1257 1273 1371 3819 7961 8683 23883 26049 27529 28073 30619 82587 84219 91857 191483 523051 533387 574449 581761 1569153 1600161 1745283 1844443 3638177 5533329 10914531 11534651 12580753 12829361 34603953 35044417 37742259 38488083 105133251 219158369 239034307 243757859 657475107 717102921 731273577 772821617 842910451 2318464851 2528731353 5271335507 14683610723 15814006521 16015298569 44050832169 48045895707 100155374633 300466123899 353179478969 1059538436907 6710410100411 20131230301233