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13069749888 = 2732137911047
BaseRepresentation
bin11000010110000010…
…01000111010000000
31020201212001002022200
430023001020322000
5203231323444023
610000522033200
7641611020036
oct141301107200
936655032280
1013069749888
1155a7595598
122649048800
131303983720
148bdb24556
1551762d743
hex30b048e80

13069749888 has 192 divisors, whose sum is σ = 41019014400. Its totient is φ = 3970197504.

The previous prime is 13069749881. The next prime is 13069749911. The reversal of 13069749888 is 88894796031.

13069749888 is a `hidden beast` number, since 1 + 3 + 0 + 69 + 7 + 498 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (13069749881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1177581 + ... + 1188627.

It is an arithmetic number, because the mean of its divisors is an integer number (213640700).

Almost surely, 213069749888 is an apocalyptic number.

13069749888 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 13069749888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20509507200).

13069749888 is an abundant number, since it is smaller than the sum of its proper divisors (27949264512).

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

13069749888 is a wasteful number, since it uses less digits than its factorization.

13069749888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11159 (or 11144 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 13069749888 in words is "thirteen billion, sixty-nine million, seven hundred forty-nine thousand, eight hundred eighty-eight".