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20265957532 = 2261798911813
BaseRepresentation
bin10010110111111100…
…011111100010011100
31221022100222022101201
4102313330133202130
5313001041120112
613150545445244
71315131540202
oct226774374234
957270868351
1020265957532
11865a671937
123b17040824
131bac816762
14da3757072
157d92a3257
hex4b7f1f89c

20265957532 has 48 divisors (see below), whose sum is σ = 36916387200. Its totient is φ = 9729308160.

The previous prime is 20265957461. The next prime is 20265957581. The reversal of 20265957532 is 23575956202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1709658 + ... + 1721470.

It is an arithmetic number, because the mean of its divisors is an integer number (769091400).

Almost surely, 220265957532 is an apocalyptic number.

It is an amenable number.

20265957532 is a deficient number, since it is larger than the sum of its proper divisors (16650429668).

20265957532 is a wasteful number, since it uses less digits than its factorization.

20265957532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12046 (or 12044 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 20265957532 in words is "twenty billion, two hundred sixty-five million, nine hundred fifty-seven thousand, five hundred thirty-two".

Divisors: 1 2 4 61 79 89 122 158 178 244 316 356 4819 5429 7031 9638 10858 11813 14062 19276 21716 23626 28124 47252 428891 720593 857782 933227 1051357 1441186 1715564 1866454 2102714 2882372 3732908 4205428 56926847 64132777 83057203 113853694 128265554 166114406 227707388 256531108 332228812 5066489383 10132978766 20265957532