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513425272 = 2385774887
BaseRepresentation
bin11110100110100…
…011111101111000
31022210002201001211
4132212203331320
52022414102042
6122540252504
715503020453
oct3646437570
91283081054
10513425272
112438a7008
12123b41134
13824a5a49
144c28c49a
153011b017
hex1e9a3f78

513425272 has 16 divisors (see below), whose sum is σ = 963808560. Its totient is φ = 256409664.

The previous prime is 513425261. The next prime is 513425281. The reversal of 513425272 is 272524315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30588 + ... + 44299.

It is an arithmetic number, because the mean of its divisors is an integer number (60238035).

Almost surely, 2513425272 is an apocalyptic number.

It is an amenable number.

513425272 is a deficient number, since it is larger than the sum of its proper divisors (450383288).

513425272 is a wasteful number, since it uses less digits than its factorization.

513425272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75750 (or 75746 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 513425272 is about 22658.8894696982. The cubic root of 513425272 is about 800.7416414142.

Adding to 513425272 its reverse (272524315), we get a palindrome (785949587).

The spelling of 513425272 in words is "five hundred thirteen million, four hundred twenty-five thousand, two hundred seventy-two".

Divisors: 1 2 4 8 857 1714 3428 6856 74887 149774 299548 599096 64178159 128356318 256712636 513425272