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428906741760 = 215395719
BaseRepresentation
bin1100011110111001101…
…01011000000000000000
31112000002020201000000000
412033130311120000000
524011400111214020
6525012000000000
742662465103030
oct6173465300000
91460066630000
10428906741760
11155997746322
126b160000000
13315a4373273
1416a8b3458c0
15b25456e090
hex63dcd58000

428906741760 has 1280 divisors, whose sum is σ = 1857461126400. Its totient is φ = 92876046336.

The previous prime is 428906741759. The next prime is 428906741789. The reversal of 428906741760 is 67147609824.

428906741760 is a `hidden beast` number, since 4 + 28 + 90 + 67 + 417 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 428906741697 and 428906741706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 22574039031 + ... + 22574039049.

It is an arithmetic number, because the mean of its divisors is an integer number (1451141505).

Almost surely, 2428906741760 is an apocalyptic number.

428906741760 is a gapful number since it is divisible by the number (40) 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 428906741760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928730563200).

428906741760 is an abundant number, since it is smaller than the sum of its proper divisors (1428554384640).

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

428906741760 is an frugal number, since it uses more digits than its factorization.

428906741760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 428906741760 in words is "four hundred twenty-eight billion, nine hundred six million, seven hundred forty-one thousand, seven hundred sixty".