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10785043440 = 24325174121491
BaseRepresentation
bin10100000101101011…
…01011001111110000
31000211121221222021100
422002311223033300
5134041432342230
64542104524400
7531156233223
oct120265531760
930747858240
1010785043440
11463496a846
12210ba80700
13102b534712
147445175ba
15431c7d660
hex282d6b3f0

10785043440 has 240 divisors, whose sum is σ = 39287547936. Its totient is φ = 2640691200.

The previous prime is 10785043429. The next prime is 10785043447. The reversal of 10785043440 is 4434058701.

10785043440 is a `hidden beast` number, since 10 + 78 + 504 + 34 + 40 = 666.

10785043440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 10785043395 and 10785043404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10785043447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 491095 + ... + 512585.

Almost surely, 210785043440 is an apocalyptic number.

10785043440 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 10785043440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19643773968).

10785043440 is an abundant number, since it is smaller than the sum of its proper divisors (28502504496).

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

10785043440 is a wasteful number, since it uses less digits than its factorization.

10785043440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21568 (or 21559 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 10785043440 in words is "ten billion, seven hundred eighty-five million, forty-three thousand, four hundred forty".