Search a number
-
+
13212013232 = 2411222972971
BaseRepresentation
bin11000100110111111…
…10101001010110000
31021002202201210221102
430103133311022300
5204024233410412
610023003143532
7645256155005
oct142337651260
937082653842
1013212013232
11566a923100
122688814ba8
1313272a4012
148d49978ac
15524d808c2
hex3137f52b0

13212013232 has 60 divisors (see below), whose sum is σ = 28158671688. Its totient is φ = 6000825600.

The previous prime is 13212013207. The next prime is 13212013237. The reversal of 13212013232 is 23231021231.

It is not an unprimeable number, because it can be changed into a prime (13212013237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4445507 + ... + 4448477.

Almost surely, 213212013232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13212013232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14079335844).

13212013232 is an abundant number, since it is smaller than the sum of its proper divisors (14946658456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13212013232 is a wasteful number, since it uses less digits than its factorization.

13212013232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298 (or 5281 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13212013232 its reverse (23231021231), we get a palindrome (36443034463).

The spelling of 13212013232 in words is "thirteen billion, two hundred twelve million, thirteen thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 16 22 44 88 121 176 242 484 968 1936 2297 2971 4594 5942 9188 11884 18376 23768 25267 32681 36752 47536 50534 65362 101068 130724 202136 261448 277937 359491 404272 522896 555874 718982 1111748 1437964 2223496 2875928 4446992 5751856 6824387 13648774 27297548 54595096 75068257 109190192 150136514 300273028 600546056 825750827 1201092112 1651501654 3303003308 6606006616 13212013232