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280068096 = 215371137
BaseRepresentation
bin10000101100011…
…000000000000000
3201111222221012110
4100230120000000
51033144134341
643442455320
76640353030
oct2054300000
9644887173
10280068096
11134100340
1279964540
134603c689
14292a58c0
15198c3216
hex10b18000

280068096 has 256 divisors, whose sum is σ = 956286720. Its totient is φ = 70778880.

The previous prime is 280068083. The next prime is 280068101. The reversal of 280068096 is 690860082.

It is a tau number, because it is divible by the number of its divisors (256).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7569390 + ... + 7569426.

It is an arithmetic number, because the mean of its divisors is an integer number (3735495).

Almost surely, 2280068096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280068096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478143360).

280068096 is an abundant number, since it is smaller than the sum of its proper divisors (676218624).

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

280068096 is an equidigital number, since it uses as much as digits as its factorization.

280068096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 280068096 is about 16735.2351641678. The cubic root of 280068096 is about 654.2662926274.

The spelling of 280068096 in words is "two hundred eighty million, sixty-eight thousand, ninety-six".