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13290285528 = 233213193124107
BaseRepresentation
bin11000110000010100…
…11010100111011000
31021022020000110100100
430120022122213120
5204204303114103
610034440535400
7650226364062
oct143012324730
937266013310
1013290285528
115700024253
1226aaa81560
13133a57aba0
14901130732
1552bb925a3
hex31829a9d8

13290285528 has 192 divisors, whose sum is σ = 42121497600. Its totient is φ = 3748965120.

The previous prime is 13290285521. The next prime is 13290285553. The reversal of 13290285528 is 82558209231.

13290285528 is a `hidden beast` number, since 1 + 3 + 2 + 90 + 2 + 8 + 552 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13290285521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 539251 + ... + 563357.

It is an arithmetic number, because the mean of its divisors is an integer number (219382800).

Almost surely, 213290285528 is an apocalyptic number.

13290285528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13290285528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21060748800).

13290285528 is an abundant number, since it is smaller than the sum of its proper divisors (28831212072).

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

13290285528 is a wasteful number, since it uses less digits than its factorization.

13290285528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24182 (or 24175 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 13290285528 in words is "thirteen billion, two hundred ninety million, two hundred eighty-five thousand, five hundred twenty-eight".