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2028297600 = 273252710061
BaseRepresentation
bin111100011100101…
…0101110110000000
312020100121012020100
41320321111312000
513123221010400
6533133242400
7101156150040
oct17071256600
95210535210
102028297600
11950a1500a
12487333400
132642a44c4
14153543720
15bd102100
hex78e55d80

2028297600 has 288 divisors, whose sum is σ = 8272171440. Its totient is φ = 463564800.

The previous prime is 2028297577. The next prime is 2028297631. The reversal of 2028297600 is 67928202.

2028297600 is a `hidden beast` number, since 2 + 0 + 28 + 29 + 7 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×20282976002 = 8227982308331520000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 196570 + ... + 206630.

Almost surely, 22028297600 is an apocalyptic number.

2028297600 is a gapful number since it is divisible by the number (20) 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 2028297600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4136085720).

2028297600 is an abundant number, since it is smaller than the sum of its proper divisors (6243873840).

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

2028297600 is a wasteful number, since it uses less digits than its factorization.

2028297600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10098 (or 10078 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2028297600 is about 45036.6250955819. The cubic root of 2028297600 is about 1265.8353671350.

The spelling of 2028297600 in words is "two billion, twenty-eight million, two hundred ninety-seven thousand, six hundred".