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3280800000 = 283551367
BaseRepresentation
bin1100001110001101…
…0000100100000000
322110122101220112010
43003203100210000
523204341100000
61301314532520
7144205224402
oct30343204400
98418356463
103280800000
111433a20665
12776897140
1340391c09a
14231a1cb72
1514305dd50
hexc38d0900

3280800000 has 216 divisors, whose sum is σ = 10921925952. Its totient is φ = 874240000.

The previous prime is 3280799989. The next prime is 3280800001. The reversal of 3280800000 is 80823.

It is a self number, because there is not a number n which added to its sum of digits gives 3280800000.

It is not an unprimeable number, because it can be changed into a prime (3280800001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2399317 + ... + 2400683.

It is an arithmetic number, because the mean of its divisors is an integer number (50564472).

Almost surely, 23280800000 is an apocalyptic number.

3280800000 is a gapful number since it is divisible by the number (30) 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 3280800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5460962976).

3280800000 is an abundant number, since it is smaller than the sum of its proper divisors (7641125952).

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

3280800000 is an frugal number, since it uses more digits than its factorization.

3280800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1377 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 3280800000 is about 57278.2681302429. The cubic root of 3280800000 is about 1485.9125545485.

Adding to 3280800000 its reverse (80823), we get a palindrome (3280880823).

The spelling of 3280800000 in words is "three billion, two hundred eighty million, eight hundred thousand".