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513213333 = 3217978509
BaseRepresentation
bin11110100101110…
…000001110010101
31022202200221100020
4132211300032111
52022340311313
6122531535353
715501145533
oct3645601625
91282627306
10513213333
11243771856
12123a5a559
1382430439
144c235153
15300c8323
hex1e970395

513213333 has 8 divisors (see below), whose sum is σ = 684607200. Its totient is φ = 341980848.

The previous prime is 513213317. The next prime is 513213353. The reversal of 513213333 is 333312315.

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

It is not a de Polignac number, because 513213333 - 24 = 513213317 is a prime.

It is a super-3 number, since 3×5132133333 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513213353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32718 + ... + 45791.

It is an arithmetic number, because the mean of its divisors is an integer number (85575900).

Almost surely, 2513213333 is an apocalyptic number.

It is an amenable number.

513213333 is a deficient number, since it is larger than the sum of its proper divisors (171393867).

513213333 is a wasteful number, since it uses less digits than its factorization.

513213333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80691.

The product of its digits is 2430, while the sum is 24.

The square root of 513213333 is about 22654.2122573265. The cubic root of 513213333 is about 800.6314457351.

Adding to 513213333 its reverse (333312315), we get a palindrome (846525648).

The spelling of 513213333 in words is "five hundred thirteen million, two hundred thirteen thousand, three hundred thirty-three".

Divisors: 1 3 2179 6537 78509 235527 171071111 513213333