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42555080 = 2351762581
BaseRepresentation
bin1010001001010…
…1011011001000
32222002000121002
42202111123020
541343230310
64120034132
71024466201
oct242253310
988060532
1042555080
1122026297
1212302948
138a7c829
14591a5a8
153b08da5
hex28956c8

42555080 has 32 divisors (see below), whose sum is σ = 101382840. Its totient is φ = 16020480.

The previous prime is 42555067. The next prime is 42555103. The reversal of 42555080 is 8055524.

It can be written as a sum of positive squares in 4 ways, for example, as 42484324 + 70756 = 6518^2 + 266^2 .

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 7 ways as a sum of consecutive naturals, for example, 30611 + ... + 31970.

Almost surely, 242555080 is an apocalyptic number.

42555080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42555080 is an abundant number, since it is smaller than the sum of its proper divisors (58827760).

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

42555080 is a wasteful number, since it uses less digits than its factorization.

42555080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62609 (or 62605 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 42555080 is about 6523.4254805278. The cubic root of 42555080 is about 349.1272951571.

The spelling of 42555080 in words is "forty-two million, five hundred fifty-five thousand, eighty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 62581 125162 250324 312905 500648 625810 1063877 1251620 2127754 2503240 4255508 5319385 8511016 10638770 21277540 42555080