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11805076080 = 2431157217
BaseRepresentation
bin10101111111010001…
…10010101001110000
31010110201100000000000
422333220302221300
5143134044413310
65231223430000
7565353330300
oct127750625160
933421300000
1011805076080
115008726426
1223555b5300
131161966b25
147ddb9b600
154915ba4c0
hex2bfa32a70

11805076080 has 720 divisors, whose sum is σ = 50708941920. Its totient is φ = 2539579392.

The previous prime is 11805076069. The next prime is 11805076091. The reversal of 11805076080 is 8067050811.

11805076080 is a `hidden beast` number, since 1 + 18 + 0 + 507 + 60 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (11805076069) and next prime (11805076091).

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 694416232 + ... + 694416248.

It is an arithmetic number, because the mean of its divisors is an integer number (70429086).

Almost surely, 211805076080 is an apocalyptic number.

11805076080 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 11805076080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25354470960).

11805076080 is an abundant number, since it is smaller than the sum of its proper divisors (38903865840).

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

11805076080 is an frugal number, since it uses more digits than its factorization.

11805076080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The spelling of 11805076080 in words is "eleven billion, eight hundred five million, seventy-six thousand, eighty".