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512502142 = 2317808363
BaseRepresentation
bin11110100011000…
…010100101111110
31022201100210202211
4132203002211332
52022200032032
6122504411034
715462124225
oct3643024576
91281323684
10512502142
11243326499
12123776a7a
1382241809
144c0cbcbc
152eed7747
hex1e8c297e

512502142 has 8 divisors (see below), whose sum is σ = 771179256. Its totient is φ = 255442392.

The previous prime is 512502113. The next prime is 512502157. The reversal of 512502142 is 241205215.

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

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, 403548 + ... + 404815.

It is an arithmetic number, because the mean of its divisors is an integer number (96397407).

Almost surely, 2512502142 is an apocalyptic number.

512502142 is a deficient number, since it is larger than the sum of its proper divisors (258677114).

512502142 is a wasteful number, since it uses less digits than its factorization.

512502142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808682.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 512502142 is about 22638.5101541599. The cubic root of 512502142 is about 800.2614468393.

Adding to 512502142 its reverse (241205215), we get a palindrome (753707357).

The spelling of 512502142 in words is "five hundred twelve million, five hundred two thousand, one hundred forty-two".

Divisors: 1 2 317 634 808363 1616726 256251071 512502142