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42203473 = 134179181
BaseRepresentation
bin1010000011111…
…1100101010001
32221102011021121
42200333211101
541301002343
64104322241
71021503124
oct240774521
987364247
1042203473
1121906104
1212173381
138988790
1458683bb
153a89aed
hex283f951

42203473 has 8 divisors (see below), whose sum is σ = 46559016. Its totient is φ = 38006400.

The previous prime is 42203461. The next prime is 42203477. The reversal of 42203473 is 37430224.

42203473 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 4 ways, for example, as 368449 + 41835024 = 607^2 + 6468^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42203473 - 29 = 42202961 is a prime.

It is a super-2 number, since 2×422034732 = 3562266266523458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42203477) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39058 + ... + 40123.

It is an arithmetic number, because the mean of its divisors is an integer number (5819877).

Almost surely, 242203473 is an apocalyptic number.

It is an amenable number.

42203473 is a deficient number, since it is larger than the sum of its proper divisors (4355543).

42203473 is a wasteful number, since it uses less digits than its factorization.

42203473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79235.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 42203473 is about 6496.4200141309. The cubic root of 42203473 is about 348.1630918504.

Adding to 42203473 its reverse (37430224), we get a palindrome (79633697).

The spelling of 42203473 in words is "forty-two million, two hundred three thousand, four hundred seventy-three".

Divisors: 1 13 41 533 79181 1029353 3246421 42203473