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52120980 = 223251717033
BaseRepresentation
bin1100011011010…
…0110110010100
310122002000112200
43012310312110
5101320332410
65101044500
71202010132
oct306646624
9118060480
1052120980
112746a29a
1215556730
13aa4b922
146cca752
1548983c0
hex31b4d94

52120980 has 72 divisors (see below), whose sum is σ = 167410152. Its totient is φ = 13080576.

The previous prime is 52120919. The next prime is 52120993. The reversal of 52120980 is 8902125.

52120980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5253264 + 46867716 = 2292^2 + 6846^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5457 + ... + 11576.

It is an arithmetic number, because the mean of its divisors is an integer number (2325141).

Almost surely, 252120980 is an apocalyptic number.

It is an amenable number.

52120980 is an abundant number, since it is smaller than the sum of its proper divisors (115289172).

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

52120980 is a wasteful number, since it uses less digits than its factorization.

52120980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17065 (or 17060 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 52120980 is about 7219.4861312977. The cubic root of 52120980 is about 373.5403525162.

The spelling of 52120980 in words is "fifty-two million, one hundred twenty thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 17 18 20 30 34 36 45 51 60 68 85 90 102 153 170 180 204 255 306 340 510 612 765 1020 1530 3060 17033 34066 51099 68132 85165 102198 153297 170330 204396 255495 289561 306594 340660 510990 579122 613188 766485 868683 1021980 1158244 1447805 1532970 1737366 2606049 2895610 3065940 3474732 4343415 5212098 5791220 8686830 10424196 13030245 17373660 26060490 52120980