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564513213 = 31146336947
BaseRepresentation
bin100001101001011…
…100100110111101
31110100020020112210
4201221130212331
52124003410323
6132003251033
716663166055
oct4151344675
91410206483
10564513213
1126a720150
12139079a79
138cc523b4
1454d8a565
153485d293
hex21a5c9bd

564513213 has 16 divisors (see below), whose sum is σ = 822905856. Its totient is φ = 341381040.

The previous prime is 564513163. The next prime is 564513221. The reversal of 564513213 is 312315465.

It is not a de Polignac number, because 564513213 - 26 = 564513149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564513263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3195 + ... + 33752.

It is an arithmetic number, because the mean of its divisors is an integer number (51431616).

Almost surely, 2564513213 is an apocalyptic number.

It is an amenable number.

564513213 is a deficient number, since it is larger than the sum of its proper divisors (258392643).

564513213 is a wasteful number, since it uses less digits than its factorization.

564513213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37424.

The product of its digits is 10800, while the sum is 30.

The square root of 564513213 is about 23759.4868000132. The cubic root of 564513213 is about 826.4654519342.

Adding to 564513213 its reverse (312315465), we get a palindrome (876828678).

The spelling of 564513213 in words is "five hundred sixty-four million, five hundred thirteen thousand, two hundred thirteen".

Divisors: 1 3 11 33 463 1389 5093 15279 36947 110841 406417 1219251 17106461 51319383 188171071 564513213