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42103241 = 279715053
BaseRepresentation
bin1010000010011…
…1000111001001
32221020001210022
42200213013021
541234300431
64102230225
71020604655
oct240470711
987201708
1042103241
1121847874
1212125375
138951c7b
14583da65
153a6a07b
hex28271c9

42103241 has 4 divisors (see below), whose sum is σ = 42121092. Its totient is φ = 42085392.

The previous prime is 42103231. The next prime is 42103249. The reversal of 42103241 is 14230124.

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 36481600 + 5621641 = 6040^2 + 2371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42103241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42103249) 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, 4730 + ... + 10323.

It is an arithmetic number, because the mean of its divisors is an integer number (10530273).

Almost surely, 242103241 is an apocalyptic number.

It is an amenable number.

42103241 is a deficient number, since it is larger than the sum of its proper divisors (17851).

42103241 is a wasteful number, since it uses less digits than its factorization.

42103241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17850.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 42103241 is about 6488.7010256291. The cubic root of 42103241 is about 347.8872476796.

Adding to 42103241 its reverse (14230124), we get a palindrome (56333365).

The spelling of 42103241 in words is "forty-two million, one hundred three thousand, two hundred forty-one".

Divisors: 1 2797 15053 42103241