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13212210232 = 23134710932473
BaseRepresentation
bin11000100111000001…
…00101010000111000
31021002210002211011201
430103200211100320
5204024311211412
610023011303544
7645260635234
oct142340452070
937083084151
1013212210232
11566aa48111
1226888aabb4
1313273428a0
148d4a095c4
15524dbde57
hex313825438

13212210232 has 64 divisors (see below), whose sum is σ = 27282084480. Its totient is φ = 5960328192.

The previous prime is 13212210223. The next prime is 13212210239. The reversal of 13212210232 is 23201221231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212210239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5341348 + ... + 5343820.

It is an arithmetic number, because the mean of its divisors is an integer number (426282570).

Almost surely, 213212210232 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 13212210232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13641042240).

13212210232 is an abundant number, since it is smaller than the sum of its proper divisors (14069874248).

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

13212210232 is a wasteful number, since it uses less digits than its factorization.

13212210232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632 (or 3628 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13212210232 its reverse (23201221231), we get a palindrome (36413431463).

The spelling of 13212210232 in words is "thirteen billion, two hundred twelve million, two hundred ten thousand, two hundred thirty-two".

Divisors: 1 2 4 8 13 26 47 52 94 104 188 376 611 1093 1222 2186 2444 2473 4372 4888 4946 8744 9892 14209 19784 28418 32149 51371 56836 64298 102742 113672 116231 128596 205484 232462 257192 410968 464924 667823 929848 1335646 1511003 2671292 2702989 3022006 5342584 5405978 6044012 10811956 12088024 21623912 35138857 70277714 127040483 140555428 254080966 281110856 508161932 1016323864 1651526279 3303052558 6606105116 13212210232