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28768300 = 22521126153
BaseRepresentation
bin110110110111…
…1100000101100
32000010120200121
41231233200230
524331041200
62504334324
7466345411
oct155574054
960116617
1028768300
111526a060
1297743a4
135c63482
143b6c108
1527d3e1a
hex1b6f82c

28768300 has 36 divisors (see below), whose sum is σ = 68105016. Its totient is φ = 10460800.

The previous prime is 28768297. The next prime is 28768303. The reversal of 28768300 is 386782.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28768297) and next prime (28768303).

It is not an unprimeable number, because it can be changed into a prime (28768303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11977 + ... + 14176.

It is an arithmetic number, because the mean of its divisors is an integer number (1891806).

Almost surely, 228768300 is an apocalyptic number.

28768300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28768300 is an abundant number, since it is smaller than the sum of its proper divisors (39336716).

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

28768300 is a wasteful number, since it uses less digits than its factorization.

28768300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26178 (or 26171 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 28768300 is about 5363.6088597138. The cubic root of 28768300 is about 306.4112686650.

The spelling of 28768300 in words is "twenty-eight million, seven hundred sixty-eight thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 26153 52306 104612 130765 261530 287683 523060 575366 653825 1150732 1307650 1438415 2615300 2876830 5753660 7192075 14384150 28768300