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13311201232 = 247216978573
BaseRepresentation
bin11000110010110100…
…01100111111010000
31021100200101002022001
430121122030333100
5204230131414412
610040505123344
7650602225600
oct143132147720
937320332261
1013311201232
11571090a55a
1226b5a89554
1313419c2044
14903c16c00
1552d924957
hex31968cfd0

13311201232 has 30 divisors (see below), whose sum is σ = 30001140258. Its totient is φ = 5704800192.

The previous prime is 13311201199. The next prime is 13311201247. The reversal of 13311201232 is 23210211331.

13311201232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11542494096 + 1768707136 = 107436^2 + 42056^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8488503 + ... + 8490070.

Almost surely, 213311201232 is an apocalyptic number.

It is an amenable number.

13311201232 is an abundant number, since it is smaller than the sum of its proper divisors (16689939026).

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

13311201232 is a wasteful number, since it uses less digits than its factorization.

13311201232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16978595 (or 16978582 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13311201232 its reverse (23210211331), we get a palindrome (36521412563).

The spelling of 13311201232 in words is "thirteen billion, three hundred eleven million, two hundred one thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 16978573 33957146 67914292 118850011 135828584 237700022 271657168 475400044 831950077 950800088 1663900154 1901600176 3327800308 6655600616 13311201232