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42485560 = 2351381703
BaseRepresentation
bin1010001000010…
…0011100111000
32221221111020021
42202010130320
541334014220
64114340224
71024056415
oct242043470
987844207
1042485560
1121a89037
121228a674
138a56cb0
1458dd10c
153ae34aa
hex2884738

42485560 has 32 divisors (see below), whose sum is σ = 102947040. Its totient is φ = 15686784.

The previous prime is 42485557. The next prime is 42485561. The reversal of 42485560 is 6558424.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42485561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40332 + ... + 41371.

It is an arithmetic number, because the mean of its divisors is an integer number (3217095).

Almost surely, 242485560 is an apocalyptic number.

42485560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42485560 is an abundant number, since it is smaller than the sum of its proper divisors (60461480).

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

42485560 is a wasteful number, since it uses less digits than its factorization.

42485560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81727 (or 81723 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 42485560 is about 6518.0948136706. The cubic root of 42485560 is about 348.9370745575.

The spelling of 42485560 in words is "forty-two million, four hundred eighty-five thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 81703 163406 326812 408515 653624 817030 1062139 1634060 2124278 3268120 4248556 5310695 8497112 10621390 21242780 42485560