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52289960 = 23517131587
BaseRepresentation
bin1100011101111…
…0000110101000
310122101121100012
43013132012220
5101341234320
65104431052
71203312602
oct307360650
9118347305
1052289960
1127575248
1215618488
13aaaa808
146d32172
1548cd4c5
hex31de1a8

52289960 has 64 divisors (see below), whose sum is σ = 125737920. Its totient is φ = 19502080.

The previous prime is 52289953. The next prime is 52289969. The reversal of 52289960 is 6998225.

52289960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52289969) 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 15 ways as a sum of consecutive naturals, for example, 88787 + ... + 89373.

It is an arithmetic number, because the mean of its divisors is an integer number (1964655).

Almost surely, 252289960 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 52289960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62868960).

52289960 is an abundant number, since it is smaller than the sum of its proper divisors (73447960).

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

52289960 is a wasteful number, since it uses less digits than its factorization.

52289960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 52289960 is about 7231.1797101165. The cubic root of 52289960 is about 373.9435986897.

The spelling of 52289960 in words is "fifty-two million, two hundred eighty-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 131 136 170 262 340 524 587 655 680 1048 1174 1310 2227 2348 2620 2935 4454 4696 5240 5870 8908 9979 11135 11740 17816 19958 22270 23480 39916 44540 49895 76897 79832 89080 99790 153794 199580 307588 384485 399160 615176 768970 1307249 1537940 2614498 3075880 5228996 6536245 10457992 13072490 26144980 52289960