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42580560 = 2435111272
BaseRepresentation
bin1010001001101…
…1101001010000
32222010022112210
42202123221100
541400034220
64120352120
71024633401
oct242335120
988108483
1042580560
1122043450
1212315640
138a8b2c9
1459259a8
153b116e0
hex289ba50

42580560 has 120 divisors (see below), whose sum is σ = 145142496. Its totient is φ = 10241280.

The previous prime is 42580553. The next prime is 42580579. The reversal of 42580560 is 6508524.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335217 + ... + 335343.

Almost surely, 242580560 is an apocalyptic number.

42580560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42580560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72571248).

42580560 is an abundant number, since it is smaller than the sum of its proper divisors (102561936).

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

42580560 is a wasteful number, since it uses less digits than its factorization.

42580560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 42580560 is about 6525.3781499619. The cubic root of 42580560 is about 349.1969616428.

Subtracting from 42580560 its reverse (6508524), we obtain a square (36072036 = 60062).

The spelling of 42580560 in words is "forty-two million, five hundred eighty thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 127 132 165 176 220 240 254 264 330 381 440 508 528 635 660 762 880 1016 1270 1320 1397 1524 1905 2032 2540 2640 2794 3048 3810 4191 5080 5588 6096 6985 7620 8382 10160 11176 13970 15240 16129 16764 20955 22352 27940 30480 32258 33528 41910 48387 55880 64516 67056 80645 83820 96774 111760 129032 161290 167640 177419 193548 241935 258064 322580 335280 354838 387096 483870 532257 645160 709676 774192 887095 967740 1064514 1290320 1419352 1774190 1935480 2129028 2661285 2838704 3548380 3870960 4258056 5322570 7096760 8516112 10645140 14193520 21290280 42580560