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500578428 = 223753229491
BaseRepresentation
bin11101110101100…
…011100001111100
31021212221000111210
4131311203201330
52011122002203
6121401044420
715255563220
oct3565434174
91255830453
10500578428
11237621a89
1211b786710
137c92846c
144a6a6780
152de2e803
hex1dd6387c

500578428 has 96 divisors (see below), whose sum is σ = 1368783360. Its totient is φ = 139426560.

The previous prime is 500578423. The next prime is 500578489. The reversal of 500578428 is 824875005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500578423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1019263 + ... + 1019753.

It is an arithmetic number, because the mean of its divisors is an integer number (14258160).

Almost surely, 2500578428 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 500578428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684391680).

500578428 is an abundant number, since it is smaller than the sum of its proper divisors (868204932).

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

500578428 is a wasteful number, since it uses less digits than its factorization.

500578428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 500578428 is about 22373.6100797346. The cubic root of 500578428 is about 794.0064737738.

It can be divided in two parts, 50057 and 8428, that added together give a palindrome (58485).

The spelling of 500578428 in words is "five hundred million, five hundred seventy-eight thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 53 84 106 159 212 229 318 371 458 491 636 687 742 916 982 1113 1374 1473 1484 1603 1964 2226 2748 2946 3206 3437 4452 4809 5892 6412 6874 9618 10311 12137 13748 19236 20622 24274 26023 36411 41244 48548 52046 72822 78069 84959 104092 112439 145644 156138 169918 182161 224878 254877 312276 337317 339836 364322 449756 509754 546483 674634 728644 787073 1019508 1092966 1349268 1574146 2185932 2361219 3148292 4722438 5959267 9444876 11918534 17877801 23837068 35755602 41714869 71511204 83429738 125144607 166859476 250289214 500578428