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652331313 = 3519236143
BaseRepresentation
bin100110111000011…
…100100100110001
31200110110212100000
4212320130210301
52313444100223
6144421420213
722110503364
oct4670344461
91613425300
10652331313
11305251197
1216256a669
13a51bc17a
14628ca0db
153c408543
hex26e1c931

652331313 has 48 divisors (see below), whose sum is σ = 1073479680. Its totient is φ = 394021584.

The previous prime is 652331299. The next prime is 652331321. The reversal of 652331313 is 313133256.

It is a happy number.

652331313 is a `hidden beast` number, since 6 + 523 + 3 + 131 + 3 = 666.

It is not a de Polignac number, because 652331313 - 225 = 618776881 is a prime.

It is a super-2 number, since 2×6523313132 = 851072283840607938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (652331333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103120 + ... + 109262.

It is an arithmetic number, because the mean of its divisors is an integer number (22364160).

Almost surely, 2652331313 is an apocalyptic number.

It is an amenable number.

652331313 is a deficient number, since it is larger than the sum of its proper divisors (421148367).

652331313 is a wasteful number, since it uses less digits than its factorization.

652331313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200 (or 6188 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 652331313 is about 25540.7774548857. Note that the first 3 decimals coincide. The cubic root of 652331313 is about 867.2734976044.

Adding to 652331313 its reverse (313133256), we get a palindrome (965464569).

The spelling of 652331313 in words is "six hundred fifty-two million, three hundred thirty-one thousand, three hundred thirteen".

Divisors: 1 3 9 19 23 27 57 69 81 171 207 243 437 513 621 1311 1539 1863 3933 4617 5589 6143 11799 18429 35397 55287 106191 116717 141289 165861 350151 423867 497583 1050453 1271601 1492749 2684491 3151359 3814803 8053473 9454077 11444409 24160419 28362231 34333227 72481257 217443771 652331313