Search a number
-
+
12520050215211 = 32711232659295411
BaseRepresentation
bin1011011000110000110100…
…1001010100100100101011
31122022220102211022021121100
42312030031021110210223
53120112030323341321
642343344235012443
72431354341630660
oct266141511244453
948286384267540
1012520050215211
113a977a5a497a0
1214a257759a123
136ca835747616
14313d8ba39a67
1516aa1dddd326
hexb630d25492b

12520050215211 has 96 divisors (see below), whose sum is σ = 23536159395840. Its totient is φ = 6218782257600.

The previous prime is 12520050215209. The next prime is 12520050215227. The reversal of 12520050215211 is 11251205002521.

12520050215211 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 0 + 0 + 502 + 152 + 1 + 1 = 666.

It is not a de Polignac number, because 12520050215211 - 21 = 12520050215209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12520050235211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42234096 + ... + 42529506.

It is an arithmetic number, because the mean of its divisors is an integer number (245168327040).

Almost surely, 212520050215211 is an apocalyptic number.

12520050215211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12520050215211 is a deficient number, since it is larger than the sum of its proper divisors (11016109180629).

12520050215211 is a wasteful number, since it uses less digits than its factorization.

12520050215211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298117 (or 298114 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 12520050215211 its reverse (11251205002521), we get a palindrome (23771255217732).

The spelling of 12520050215211 in words is "twelve trillion, five hundred twenty billion, fifty million, two hundred fifteen thousand, two hundred eleven".

Divisors: 1 3 7 9 11 21 23 33 63 69 77 99 161 207 231 253 483 693 759 1449 1771 2277 2659 5313 7977 15939 18613 23931 29249 55839 61157 87747 167517 183471 204743 263241 295411 428099 550413 614229 672727 886233 1284297 1842687 2018181 2067877 2658699 3249521 3852891 4709089 6054543 6203631 6794453 9748563 14127267 18610893 20383359 22746647 29245689 42381801 47561171 61150077 68239941 74738983 142683513 204719823 224216949 428050539 523172881 672650847 785497849 1569518643 2356493547 4708555929 5498484943 7069480641 8640476339 16495454829 18066450527 25921429017 49486364487 54199351581 60483334373 77764287051 126465153689 162598054743 181450003119 198730955797 379395461067 544350009357 596192867391 1138186383201 1391116690579 1788578602173 4173350071737 12520050215211