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568428 = 223767101
BaseRepresentation
bin10001010110001101100
31001212201220
42022301230
5121142203
620103340
74555140
oct2126154
91055656
10568428
11359083
12234b50
1316b963
1410b220
15b3653
hex8ac6c

568428 has 48 divisors (see below), whose sum is σ = 1553664. Its totient is φ = 158400.

The previous prime is 568391. The next prime is 568433. The reversal of 568428 is 824865.

It is a super-2 number, since 2×5684282 = 646220782368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5578 + ... + 5678.

It is an arithmetic number, because the mean of its divisors is an integer number (32368).

2568428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 568428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776832).

568428 is an abundant number, since it is smaller than the sum of its proper divisors (985236).

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

568428 is a wasteful number, since it uses less digits than its factorization.

568428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 180 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 568428 is about 753.9416423040. The cubic root of 568428 is about 82.8371510569.

The spelling of 568428 in words is "five hundred sixty-eight thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 67 84 101 134 201 202 268 303 402 404 469 606 707 804 938 1212 1407 1414 1876 2121 2814 2828 4242 5628 6767 8484 13534 20301 27068 40602 47369 81204 94738 142107 189476 284214 568428