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512632993 = 2371313921
BaseRepresentation
bin11110100011100…
…010100010100001
31022201121110021011
4132203202202201
52022213223433
6122511300521
715463210555
oct3643424241
91281543234
10512632993
11243405834
1212381a741
1382289242
144c123865
15300113cd
hex1e8e28a1

512632993 has 8 divisors (see below), whose sum is σ = 542457216. Its totient is φ = 483436800.

The previous prime is 512632987. The next prime is 512633021. The reversal of 512632993 is 399236215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 512632993 - 25 = 512632961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512632903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155328 + ... + 158593.

It is an arithmetic number, because the mean of its divisors is an integer number (67807152).

Almost surely, 2512632993 is an apocalyptic number.

It is an amenable number.

512632993 is a deficient number, since it is larger than the sum of its proper divisors (29824223).

512632993 is a wasteful number, since it uses less digits than its factorization.

512632993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314015.

The product of its digits is 87480, while the sum is 40.

The square root of 512632993 is about 22641.3999787999. The cubic root of 512632993 is about 800.3295480831.

The spelling of 512632993 in words is "five hundred twelve million, six hundred thirty-two thousand, nine hundred ninety-three".

Divisors: 1 23 71 1633 313921 7220183 22288391 512632993