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13427915760 = 24325714917881
BaseRepresentation
bin11001000000101110…
…11011101111110000
31021122210222210112100
430200113123233300
5210000021301020
610100234500400
7653520254310
oct144027335760
937583883470
1013427915760
115770787946
122728b94700
13135cc386ac
14915519440
15538ccba90
hex3205dbbf0

13427915760 has 240 divisors, whose sum is σ = 51886411200. Its totient is φ = 3048468480.

The previous prime is 13427915741. The next prime is 13427915797. The reversal of 13427915760 is 6751972431.

13427915760 is a `hidden beast` number, since 1 + 3 + 4 + 2 + 79 + 1 + 576 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 742020 + ... + 759900.

It is an arithmetic number, because the mean of its divisors is an integer number (216193380).

Almost surely, 213427915760 is an apocalyptic number.

13427915760 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 13427915760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25943205600).

13427915760 is an abundant number, since it is smaller than the sum of its proper divisors (38458495440).

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

13427915760 is a wasteful number, since it uses less digits than its factorization.

13427915760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18056 (or 18047 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 13427915760 in words is "thirteen billion, four hundred twenty-seven million, nine hundred fifteen thousand, seven hundred sixty".