Search a number
-
+
1054205 = 52389103
BaseRepresentation
bin100000001010111111101
31222120002122
410001113331
5232213310
634332325
711650325
oct4012775
91876078
101054205
11660049
1242a0a5
132abab9
141d6285
1515c555
hex1015fd

1054205 has 16 divisors (see below), whose sum is σ = 1347840. Its totient is φ = 789888.

The previous prime is 1054201. The next prime is 1054213. The reversal of 1054205 is 5024501.

It is a cyclic number.

It is not a de Polignac number, because 1054205 - 22 = 1054201 is a prime.

It is a super-2 number, since 2×10542052 = 2222696364050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054201) 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 15 ways as a sum of consecutive naturals, for example, 10184 + ... + 10286.

It is an arithmetic number, because the mean of its divisors is an integer number (84240).

21054205 is an apocalyptic number.

It is an amenable number.

1054205 is a deficient number, since it is larger than the sum of its proper divisors (293635).

1054205 is a wasteful number, since it uses less digits than its factorization.

1054205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 1054205 is about 1026.7448563299. The cubic root of 1054205 is about 101.7751358072.

Adding to 1054205 its reverse (5024501), we get a palindrome (6078706).

The spelling of 1054205 in words is "one million, fifty-four thousand, two hundred five".

Divisors: 1 5 23 89 103 115 445 515 2047 2369 9167 10235 11845 45835 210841 1054205