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42236215 = 571206749
BaseRepresentation
bin1010000100011…
…1100100110111
32221110211012021
42201013210313
541303024330
64105134011
71022000440
oct241074467
987424167
1042236215
112192876a
121218a307
13899a658
1458762c7
153a9467a
hex2847937

42236215 has 8 divisors (see below), whose sum is σ = 57924000. Its totient is φ = 28961952.

The previous prime is 42236189. The next prime is 42236219. The reversal of 42236215 is 51263224.

42236215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42236215 - 27 = 42236087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42236215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42236219) 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, 603340 + ... + 603409.

It is an arithmetic number, because the mean of its divisors is an integer number (7240500).

Almost surely, 242236215 is an apocalyptic number.

42236215 is a deficient number, since it is larger than the sum of its proper divisors (15687785).

42236215 is a wasteful number, since it uses less digits than its factorization.

42236215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206761.

The product of its digits is 2880, while the sum is 25.

The square root of 42236215 is about 6498.9395288770. The cubic root of 42236215 is about 348.2531050526.

Adding to 42236215 its reverse (51263224), we get a palindrome (93499439).

The spelling of 42236215 in words is "forty-two million, two hundred thirty-six thousand, two hundred fifteen".

Divisors: 1 5 7 35 1206749 6033745 8447243 42236215