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52750940 = 22511347691
BaseRepresentation
bin1100100100111…
…0101001011100
310200021000200112
43021032221130
5102001012230
65122345152
71210242554
oct311165134
9120230615
1052750940
112785a620
12157bb1b8
13ac0c598
147012164
15496ed95
hex324ea5c

52750940 has 48 divisors (see below), whose sum is σ = 121371264. Its totient is φ = 19099200.

The previous prime is 52750939. The next prime is 52750961. The reversal of 52750940 is 4905725.

52750940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 52750897 and 52750906.

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 15 ways as a sum of consecutive naturals, for example, 75995 + ... + 76685.

It is an arithmetic number, because the mean of its divisors is an integer number (2528568).

Almost surely, 252750940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52750940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60685632).

52750940 is an abundant number, since it is smaller than the sum of its proper divisors (68620324).

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

52750940 is a wasteful number, since it uses less digits than its factorization.

52750940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 52750940 is about 7262.9842351474. The cubic root of 52750940 is about 375.0392610746.

The spelling of 52750940 in words is "fifty-two million, seven hundred fifty thousand, nine hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 347 691 694 1382 1388 1735 2764 3455 3470 3817 6910 6940 7601 7634 13820 15202 15268 19085 30404 38005 38170 76010 76340 152020 239777 479554 959108 1198885 2397770 2637547 4795540 5275094 10550188 13187735 26375470 52750940