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3031200000 = 283255421
BaseRepresentation
bin1011010010101100…
…0111000100000000
321211020201220200200
42310223013010000
522201441400000
61220441045200
7135054526533
oct26453070400
97736656620
103031200000
111316040474
12707186800
13393cb978a
1420a808a1a
1512b1a8500
hexb4ac7100

3031200000 has 324 divisors, whose sum is σ = 10949869476. Its totient is φ = 806400000.

The previous prime is 3031199971. The next prime is 3031200013. The reversal of 3031200000 is 21303.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3015327744 + 15872256 = 54912^2 + 3984^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7199790 + ... + 7200210.

Almost surely, 23031200000 is an apocalyptic number.

3031200000 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 3031200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5474934738).

3031200000 is an abundant number, since it is smaller than the sum of its proper divisors (7918669476).

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

3031200000 is an frugal number, since it uses more digits than its factorization.

3031200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 3031200000 is about 55056.3347853814. The cubic root of 3031200000 is about 1447.2321356380.

Adding to 3031200000 its reverse (21303), we get a palindrome (3031221303).

The spelling of 3031200000 in words is "three billion, thirty-one million, two hundred thousand".