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13210312232 = 2313229336929
BaseRepresentation
bin11000100110110010…
…10101111000101000
31021002122112101121102
430103121111320220
5204023314442412
610022502500532
7645235541555
oct142331257050
937078471542
1013210312232
115669971117
122688134748
131326b29a00
148d4673a2c
15524b468c2
hex313655e28

13210312232 has 48 divisors (see below), whose sum is σ = 27746185500. Its totient is φ = 5886806016.

The previous prime is 13210312207. The next prime is 13210312253. The reversal of 13210312232 is 23221301231.

It can be written as a sum of positive squares in 6 ways, for example, as 6270422596 + 6939889636 = 79186^2 + 83306^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129257 + ... + 207672.

Almost surely, 213210312232 is an apocalyptic number.

It is an amenable number.

13210312232 is an abundant number, since it is smaller than the sum of its proper divisors (14535873268).

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

13210312232 is a wasteful number, since it uses less digits than its factorization.

13210312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336990 (or 336973 counting only the distinct ones).

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

Adding to 13210312232 its reverse (23221301231), we get a palindrome (36431613463).

The spelling of 13210312232 in words is "thirteen billion, two hundred ten million, three hundred twelve thousand, two hundred thirty-two".

Divisors: 1 2 4 8 13 26 29 52 58 104 116 169 232 338 377 676 754 1352 1508 3016 4901 9802 19604 39208 336929 673858 1347716 2695432 4380077 8760154 9770941 17520308 19541882 35040616 39083764 56941001 78167528 113882002 127022233 227764004 254044466 455528008 508088932 1016177864 1651289029 3302578058 6605156116 13210312232