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42203055 = 359472971
BaseRepresentation
bin1010000011111…
…1011110101111
32221102010201010
42200333132233
541300444210
64104320303
71021501656
oct240773657
987363633
1042203055
1121905864
1212173093
13898852b
14586819d
153a89920
hex283f7af

42203055 has 16 divisors (see below), whose sum is σ = 67618944. Its totient is φ = 22476960.

The previous prime is 42203053. The next prime is 42203069. The reversal of 42203055 is 55030224.

It is not a de Polignac number, because 42203055 - 21 = 42203053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42203053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12720 + ... + 15690.

It is an arithmetic number, because the mean of its divisors is an integer number (4226184).

Almost surely, 242203055 is an apocalyptic number.

42203055 is a deficient number, since it is larger than the sum of its proper divisors (25415889).

42203055 is a wasteful number, since it uses less digits than its factorization.

42203055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 42203055 is about 6496.3878424860. The cubic root of 42203055 is about 348.1619423980.

Adding to 42203055 its reverse (55030224), we get a palindrome (97233279).

The spelling of 42203055 in words is "forty-two million, two hundred three thousand, fifty-five".

Divisors: 1 3 5 15 947 2841 2971 4735 8913 14205 14855 44565 2813537 8440611 14067685 42203055