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3280704768 = 28341119757
BaseRepresentation
bin1100001110001011…
…1001010100000000
322110122020001220000
43003202321110000
523204330023033
61301312520000
7144204346635
oct30342712400
98418201800
103280704768
111433966060
12776850000
134038b7933
142319d618c
15143040a13
hexc38b9500

3280704768 has 360 divisors, whose sum is σ = 11248295520. Its totient is φ = 940584960.

The previous prime is 3280704701. The next prime is 3280704793. The reversal of 3280704768 is 8674070823.

It is a happy number.

3280704768 is a `hidden beast` number, since 32 + 80 + 70 + 476 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4333446 + ... + 4334202.

Almost surely, 23280704768 is an apocalyptic number.

3280704768 is a gapful number since it is divisible by the number (38) 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 3280704768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5624147760).

3280704768 is an abundant number, since it is smaller than the sum of its proper divisors (7967590752).

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

3280704768 is a wasteful number, since it uses less digits than its factorization.

3280704768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 3280704768 is about 57277.4368141592. The cubic root of 3280704768 is about 1485.8981771819.

The spelling of 3280704768 in words is "three billion, two hundred eighty million, seven hundred four thousand, seven hundred sixty-eight".