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201041 = 1271583
BaseRepresentation
bin110001000101010001
3101012202222
4301011101
522413131
64150425
71465061
oct610521
9335688
10201041
11128055
1298415
1370679
14533a1
153e87b
hex31151

201041 has 4 divisors (see below), whose sum is σ = 202752. Its totient is φ = 199332.

The previous prime is 201037. The next prime is 201049. The reversal of 201041 is 140102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140102 = 270051.

It is a cyclic number.

It is not a de Polignac number, because 201041 - 22 = 201037 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (201049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665 + ... + 918.

It is an arithmetic number, because the mean of its divisors is an integer number (50688).

2201041 is an apocalyptic number.

It is an amenable number.

201041 is a deficient number, since it is larger than the sum of its proper divisors (1711).

201041 is a wasteful number, since it uses less digits than its factorization.

201041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 201041 is about 448.3759583207. The cubic root of 201041 is about 58.5816426480.

Adding to 201041 its reverse (140102), we get a palindrome (341143).

The spelling of 201041 in words is "two hundred one thousand, forty-one", and thus it is an iban number.

Divisors: 1 127 1583 201041