Search a number
-
+
13210032231 = 331167765699
BaseRepresentation
bin11000100110110000…
…10001100001100111
31021002122000011112000
430103120101201213
5204023232012411
610022452500343
7645233264334
oct142330214147
937078004460
1013210032231
11566979a810
12268801a6b3
131326a5c426
148d45dd98b
15524add956
hex313611867

13210032231 has 32 divisors (see below), whose sum is σ = 21381408000. Its totient is φ = 7994132640.

The previous prime is 13210032191. The next prime is 13210032233. The reversal of 13210032231 is 13223001231.

It is not a de Polignac number, because 13210032231 - 215 = 13209999463 is a prime.

It is a super-2 number, since 2×132100322312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13210032233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168220 + ... + 233918.

It is an arithmetic number, because the mean of its divisors is an integer number (668169000).

Almost surely, 213210032231 is an apocalyptic number.

13210032231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13210032231 is a deficient number, since it is larger than the sum of its proper divisors (8171375769).

13210032231 is a wasteful number, since it uses less digits than its factorization.

13210032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66396 (or 66390 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13210032231 its reverse (13223001231), we get a palindrome (26433033462).

The spelling of 13210032231 in words is "thirteen billion, two hundred ten million, thirty-two thousand, two hundred thirty-one".

Divisors: 1 3 9 11 27 33 99 297 677 2031 6093 7447 18279 22341 65699 67023 197097 201069 591291 722689 1773873 2168067 6504201 19512603 44478223 133434669 400304007 489260453 1200912021 1467781359 4403344077 13210032231