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52808700 = 22352725147
BaseRepresentation
bin1100100101110…
…0101111111100
310200100221220210
43021130233330
5102004334300
65123512420
71210603140
oct311345774
9120327823
1052808700
1127899a5a
1215828710
13ac2c969
147029220
154982050
hex325cbfc

52808700 has 72 divisors (see below), whose sum is σ = 174627712. Its totient is φ = 12070080.

The previous prime is 52808699. The next prime is 52808719. The reversal of 52808700 is 780825.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10474 + ... + 14673.

Almost surely, 252808700 is an apocalyptic number.

52808700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52808700 is an abundant number, since it is smaller than the sum of its proper divisors (121819012).

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

52808700 is a wasteful number, since it uses less digits than its factorization.

52808700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25171 (or 25164 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 52808700 is about 7266.9594742230. The cubic root of 52808700 is about 375.1760950729.

The spelling of 52808700 in words is "fifty-two million, eight hundred eight thousand, seven hundred".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 140 150 175 210 300 350 420 525 700 1050 2100 25147 50294 75441 100588 125735 150882 176029 251470 301764 352058 377205 502940 528087 628675 704116 754410 880145 1056174 1257350 1508820 1760290 1886025 2112348 2514700 2640435 3520580 3772050 4400725 5280870 7544100 8801450 10561740 13202175 17602900 26404350 52808700