Search a number
-
+
516238331 = 7137538309
BaseRepresentation
bin11110110001010…
…010101111111011
31022222101121212012
4132301102233323
52024124111311
6123120440135
715535645010
oct3661225773
91288347765
10516238331
11245448554
12124a7904b
1382c4c28b
144c7c1707
15304c478b
hex1ec52bfb

516238331 has 8 divisors (see below), whose sum is σ = 594294240. Its totient is φ = 439259328.

The previous prime is 516238321. The next prime is 516238343. The reversal of 516238331 is 133832615.

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 516238331 - 26 = 516238267 is a prime.

It is a super-2 number, since 2×5162383312 = 533004028787331122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516238301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268196 + ... + 270113.

It is an arithmetic number, because the mean of its divisors is an integer number (74286780).

Almost surely, 2516238331 is an apocalyptic number.

516238331 is a deficient number, since it is larger than the sum of its proper divisors (78055909).

516238331 is a wasteful number, since it uses less digits than its factorization.

516238331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538453.

The product of its digits is 12960, while the sum is 32.

The square root of 516238331 is about 22720.8787462105. The cubic root of 516238331 is about 802.2014007992.

The spelling of 516238331 in words is "five hundred sixteen million, two hundred thirty-eight thousand, three hundred thirty-one".

Divisors: 1 7 137 959 538309 3768163 73748333 516238331