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42130860 = 22353122651
BaseRepresentation
bin1010000010110…
…1110110101100
32221021110200020
42200231312230
541241141420
64103002140
71021051332
oct240556654
987243606
1042130860
11218665a2
1212139350
138961705
145849b52
153a73340
hex282ddac

42130860 has 48 divisors (see below), whose sum is σ = 121777152. Its totient is φ = 10872000.

The previous prime is 42130849. The next prime is 42130867. The reversal of 42130860 is 6803124.

It is a happy number.

42130860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42130860.

It is not an unprimeable number, because it can be changed into a prime (42130867) 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, 9466 + ... + 13185.

It is an arithmetic number, because the mean of its divisors is an integer number (2537024).

Almost surely, 242130860 is an apocalyptic number.

It is an amenable number.

42130860 is an abundant number, since it is smaller than the sum of its proper divisors (79646292).

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

42130860 is a wasteful number, since it uses less digits than its factorization.

42130860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22694 (or 22692 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 42130860 is about 6490.8289147073. The cubic root of 42130860 is about 347.9633003973.

Adding to 42130860 its reverse (6803124), we get a palindrome (48933984).

The spelling of 42130860 in words is "forty-two million, one hundred thirty thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1860 22651 45302 67953 90604 113255 135906 226510 271812 339765 453020 679530 702181 1359060 1404362 2106543 2808724 3510905 4213086 7021810 8426172 10532715 14043620 21065430 42130860