Search a number
-
+
12505215430341 = 32671031671205647
BaseRepresentation
bin1011010111111001100011…
…1011000110111011000101
31122021111010222001010110200
42311332120323012323011
53114341140122232331
642332452222041113
72430320616221214
oct265763073067305
948244128033420
1012505215430341
113a91483111307
12149b717419199
136c93101c69ca
1431338174107b
1516a4518615e6
hexb5f98ec6ec5

12505215430341 has 48 divisors (see below), whose sum is σ = 18621532360704. Its totient is φ = 8083943236512.

The previous prime is 12505215430321. The next prime is 12505215430397. The reversal of 12505215430341 is 14303451250521.

12505215430341 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 5 + 215 + 430 + 3 + 4 + 1 = 666.

It is not a de Polignac number, because 12505215430341 - 239 = 11955459616453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12505215430296 and 12505215430305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505215430321) 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, 9769380 + ... + 10975026.

It is an arithmetic number, because the mean of its divisors is an integer number (387948590848).

Almost surely, 212505215430341 is an apocalyptic number.

It is an amenable number.

12505215430341 is a deficient number, since it is larger than the sum of its proper divisors (6116316930363).

12505215430341 is a wasteful number, since it uses less digits than its factorization.

12505215430341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205990 (or 1205987 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 12505215430341 its reverse (14303451250521), we get a palindrome (26808666680862).

The spelling of 12505215430341 in words is "twelve trillion, five hundred five billion, two hundred fifteen million, four hundred thirty thousand, three hundred forty-one".

Divisors: 1 3 9 67 103 167 201 309 501 603 927 1503 6901 11189 17201 20703 33567 51603 62109 100701 154809 1152467 1205647 3457401 3616941 10372203 10850823 80778349 124181641 201343049 242335047 372544923 604029147 727005141 1117634769 1812087441 8320169947 13489984283 20738334047 24960509841 40469952849 62215002141 74881529523 121409858547 186645006423 1389468381149 4168405143447 12505215430341