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42131050 = 2521364817
BaseRepresentation
bin1010000010110…
…1111001101010
32221021110221021
42200231321222
541241143200
64103003054
71021052023
oct240557152
987243837
1042131050
1121866755
121213948a
138961820
145849c4a
153a7341a
hex282de6a

42131050 has 24 divisors (see below), whose sum is σ = 84393036. Its totient is φ = 15555840.

The previous prime is 42131029. The next prime is 42131081. The reversal of 42131050 is 5013124.

42131050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 4835601 + 37295449 = 2199^2 + 6107^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 31759 + ... + 33058.

Almost surely, 242131050 is an apocalyptic number.

42131050 is an abundant number, since it is smaller than the sum of its proper divisors (42261986).

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

42131050 is a wasteful number, since it uses less digits than its factorization.

42131050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64842 (or 64837 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 42131050 is about 6490.8435507259. The cubic root of 42131050 is about 347.9638234733.

Adding to 42131050 its reverse (5013124), we get a palindrome (47144174).

The spelling of 42131050 in words is "forty-two million, one hundred thirty-one thousand, fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 64817 129634 324085 648170 842621 1620425 1685242 3240850 4213105 8426210 21065525 42131050