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13040521200 = 2432527517481
BaseRepresentation
bin11000010010100011…
…01000111111110000
31020122211001010002200
430021101220333300
5203201333134300
65553555343200
7641104413150
oct141121507760
936584033080
1013040521200
115592041653
12263b2b1b00
1312ca8bb845
148b9cb6760
15514ca8200
hex309468ff0

13040521200 has 180 divisors, whose sum is σ = 51719221008. Its totient is φ = 2980684800.

The previous prime is 13040521187. The next prime is 13040521201. The reversal of 13040521200 is 212504031.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13040521201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 233541 + ... + 283940.

Almost surely, 213040521200 is an apocalyptic number.

13040521200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13040521200 is an abundant number, since it is smaller than the sum of its proper divisors (38678699808).

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

13040521200 is a wasteful number, since it uses less digits than its factorization.

13040521200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517512 (or 517498 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The spelling of 13040521200 in words is "thirteen billion, forty million, five hundred twenty-one thousand, two hundred".