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283428700 = 225219149173
BaseRepresentation
bin10000111001001…
…100011101011100
3201202022200002021
4100321030131130
51040024204300
644042505524
710011050512
oct2071143534
9652280067
10283428700
11135a961a5
127ab052a4
13469481b9
14298dc4b2
1519d38d1a
hex10e4c75c

283428700 has 36 divisors (see below), whose sum is σ = 647415160. Its totient is φ = 107403840.

The previous prime is 283428647. The next prime is 283428703. The reversal of 283428700 is 7824382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283428703) 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, 72687 + ... + 76486.

Almost surely, 2283428700 is an apocalyptic number.

283428700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283428700 is an abundant number, since it is smaller than the sum of its proper divisors (363986460).

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

283428700 is a wasteful number, since it uses less digits than its factorization.

283428700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149206 (or 149199 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 283428700 is about 16835.3408043912. The cubic root of 283428700 is about 656.8727941056.

The spelling of 283428700 in words is "two hundred eighty-three million, four hundred twenty-eight thousand, seven hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 190 380 475 950 1900 149173 298346 596692 745865 1491730 2834287 2983460 3729325 5668574 7458650 11337148 14171435 14917300 28342870 56685740 70857175 141714350 283428700