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42652720 = 24511192551
BaseRepresentation
bin1010001010110…
…1010000110000
32222020222112101
42202231100300
541404341340
64122110144
71025353645
oct242552060
988228471
1042652720
1122092690
121234b354
138ab50c6
145943dcc
153b27c9a
hex28ad430

42652720 has 80 divisors (see below), whose sum is σ = 113921280. Its totient is φ = 14688000.

The previous prime is 42652703. The next prime is 42652723. The reversal of 42652720 is 2725624.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42652723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15445 + ... + 17995.

It is an arithmetic number, because the mean of its divisors is an integer number (1424016).

Almost surely, 242652720 is an apocalyptic number.

42652720 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 42652720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56960640).

42652720 is an abundant number, since it is smaller than the sum of its proper divisors (71268560).

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

42652720 is a wasteful number, since it uses less digits than its factorization.

42652720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594 (or 2588 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 42652720 is about 6530.9049908876. The cubic root of 42652720 is about 349.3941081967.

The spelling of 42652720 in words is "forty-two million, six hundred fifty-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 19 20 22 38 40 44 55 76 80 88 95 110 152 176 190 209 220 304 380 418 440 760 836 880 1045 1520 1672 2090 2551 3344 4180 5102 8360 10204 12755 16720 20408 25510 28061 40816 48469 51020 56122 96938 102040 112244 140305 193876 204080 224488 242345 280610 387752 448976 484690 533159 561220 775504 969380 1066318 1122440 1938760 2132636 2244880 2665795 3877520 4265272 5331590 8530544 10663180 21326360 42652720