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20764652 = 2237913697
BaseRepresentation
bin100111100110…
…1011111101100
31110001221202012
41033031133230
520303432102
62021020352
7341332226
oct117153754
943057665
1020764652
11107a2877
126b546b8
1343c049c
142a87416
151c52752
hex13cd7ec

20764652 has 12 divisors (see below), whose sum is σ = 36436680. Its totient is φ = 10354176.

The previous prime is 20764651. The next prime is 20764673. The reversal of 20764652 is 25646702.

It is a super-3 number, since 3×207646523 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20764651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5333 + ... + 8364.

It is an arithmetic number, because the mean of its divisors is an integer number (3036390).

Almost surely, 220764652 is an apocalyptic number.

It is an amenable number.

20764652 is a deficient number, since it is larger than the sum of its proper divisors (15672028).

20764652 is a wasteful number, since it uses less digits than its factorization.

20764652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14080 (or 14078 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 20764652 is about 4556.8247717023. The cubic root of 20764652 is about 274.8578968304.

The spelling of 20764652 in words is "twenty million, seven hundred sixty-four thousand, six hundred fifty-two".

Divisors: 1 2 4 379 758 1516 13697 27394 54788 5191163 10382326 20764652