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511072028 = 22432971349
BaseRepresentation
bin11110011101100…
…101011100011100
31022121200011000122
4132131211130130
52021313301103
6122414014112
715444016625
oct3635453434
91277604018
10511072028
11242539a85
121231a7338
1381b608ac
144bc38a4c
152ed03b38
hex1e76571c

511072028 has 12 divisors (see below), whose sum is σ = 915175800. Its totient is φ = 249593232.

The previous prime is 511072027. The next prime is 511072049. The reversal of 511072028 is 820270115.

It is a super-2 number, since 2×5110720282 = 522389235608065568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511071988 and 511072006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511072027) 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 3 ways as a sum of consecutive naturals, for example, 1485503 + ... + 1485846.

It is an arithmetic number, because the mean of its divisors is an integer number (76264650).

Almost surely, 2511072028 is an apocalyptic number.

It is an amenable number.

511072028 is a deficient number, since it is larger than the sum of its proper divisors (404103772).

511072028 is a wasteful number, since it uses less digits than its factorization.

511072028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971396 (or 2971394 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 511072028 is about 22606.9022203397. The cubic root of 511072028 is about 799.5163889594.

It can be divided in two parts, 51107 and 2028, that added together give a palindrome (53135).

The spelling of 511072028 in words is "five hundred eleven million, seventy-two thousand, twenty-eight".

Divisors: 1 2 4 43 86 172 2971349 5942698 11885396 127768007 255536014 511072028