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13368821760 = 2113257172353
BaseRepresentation
bin11000111001101100…
…00000100000000000
31021111200210111210200
430130312000200000
5204334404244020
610050324125200
7652202052510
oct143466004000
937450714720
1013368821760
115740395728
122711236800
131350917c28
1490b735840
15533a07590
hex31cd80800

13368821760 has 1152 divisors, whose sum is σ = 59609571840. Its totient is φ = 2699034624.

The previous prime is 13368821747. The next prime is 13368821773. The reversal of 13368821760 is 6712886331.

13368821760 is a `hidden beast` number, since 13 + 368 + 8 + 217 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (13368821747) and next prime (13368821773).

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 252241894 + ... + 252241946.

It is an arithmetic number, because the mean of its divisors is an integer number (51744420).

Almost surely, 213368821760 is an apocalyptic number.

13368821760 is a gapful number since it is divisible by the number (10) 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 13368821760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29804785920).

13368821760 is an abundant number, since it is smaller than the sum of its proper divisors (46240750080).

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

13368821760 is a wasteful number, since it uses less digits than its factorization.

13368821760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 13368821760 in words is "thirteen billion, three hundred sixty-eight million, eight hundred twenty-one thousand, seven hundred sixty".