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52188912 = 24321721319
BaseRepresentation
bin1100011100010…
…1011011110000
310122012110201200
43013011123300
5101330021122
65102331200
71202412156
oct307053360
9118173650
1052188912
1127506336
1215589b00
13aa73819
146d073d6
1548ad5ac
hex31c56f0

52188912 has 60 divisors (see below), whose sum is σ = 154655280. Its totient is φ = 16372224.

The previous prime is 52188911. The next prime is 52188973. The reversal of 52188912 is 21988125.

52188912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52188911) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8212 + ... + 13107.

It is an arithmetic number, because the mean of its divisors is an integer number (2577588).

Almost surely, 252188912 is an apocalyptic number.

It is an amenable number.

52188912 is an abundant number, since it is smaller than the sum of its proper divisors (102466368).

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

52188912 is a wasteful number, since it uses less digits than its factorization.

52188912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21350 (or 21341 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 52188912 is about 7224.1893662888. The cubic root of 52188912 is about 373.7025669569.

The spelling of 52188912 in words is "fifty-two million, one hundred eighty-eight thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 34 36 48 51 68 72 102 136 144 153 204 272 306 408 612 816 1224 2448 21319 42638 63957 85276 127914 170552 191871 255828 341104 362423 383742 511656 724846 767484 1023312 1087269 1449692 1534968 2174538 2899384 3069936 3261807 4349076 5798768 6523614 8698152 13047228 17396304 26094456 52188912