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42243301 = 197214433
BaseRepresentation
bin1010000100100…
…1010011100101
32221111011220201
42201021103211
541303241201
64105230501
71022030212
oct241112345
987434821
1042243301
1121933021
1212192431
1389a0949
145878b09
153a96801
hex28494e5

42243301 has 4 divisors (see below), whose sum is σ = 42457932. Its totient is φ = 42028672.

The previous prime is 42243281. The next prime is 42243337. The reversal of 42243301 is 10334224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41912676 + 330625 = 6474^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 42243301 - 25 = 42243269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 107020 + ... + 107413.

It is an arithmetic number, because the mean of its divisors is an integer number (10614483).

Almost surely, 242243301 is an apocalyptic number.

It is an amenable number.

42243301 is a deficient number, since it is larger than the sum of its proper divisors (214631).

42243301 is a wasteful number, since it uses less digits than its factorization.

42243301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214630.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 42243301 is about 6499.4846718798. The cubic root of 42243301 is about 348.2725795211.

Adding to 42243301 its reverse (10334224), we get a palindrome (52577525).

The spelling of 42243301 in words is "forty-two million, two hundred forty-three thousand, three hundred one".

Divisors: 1 197 214433 42243301