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652464890 = 25731117293
BaseRepresentation
bin100110111000111…
…101001011111010
31200110201122120022
4212320331023322
52314012334030
6144424330442
722111601000
oct4670751372
91613648508
10652464890
11305332590
12162613a22
13a5237bcc
1462922a70
153c432de5
hex26e3d2fa

652464890 has 64 divisors (see below), whose sum is σ = 1494201600. Its totient is φ = 203353920.

The previous prime is 652464889. The next prime is 652464931. The reversal of 652464890 is 98464256.

It is a super-3 number, since 3×6524648903 (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29084 + ... + 46376.

It is an arithmetic number, because the mean of its divisors is an integer number (23346900).

Almost surely, 2652464890 is an apocalyptic number.

652464890 is an abundant number, since it is smaller than the sum of its proper divisors (841736710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

652464890 is a wasteful number, since it uses less digits than its factorization.

652464890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17332 (or 17318 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 652464890 is about 25543.3922962476. The cubic root of 652464890 is about 867.3326903711.

The spelling of 652464890 in words is "six hundred fifty-two million, four hundred sixty-four thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 11 14 22 35 49 55 70 77 98 110 154 245 343 385 490 539 686 770 1078 1715 2695 3430 3773 5390 7546 17293 18865 34586 37730 86465 121051 172930 190223 242102 380446 605255 847357 951115 1210510 1331561 1694714 1902230 2663122 4236785 5931499 6657805 8473570 9320927 11862998 13315610 18641854 29657495 46604635 59314990 65246489 93209270 130492978 326232445 652464890