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1130205 = 3575347
BaseRepresentation
bin100010011111011011101
32010102100110
410103323131
5242131310
640120233
712415026
oct4237335
92112313
101130205
1170215a
12466079
1330757b
14215c4d
15174d20
hex113edd

1130205 has 8 divisors (see below), whose sum is σ = 1808352. Its totient is φ = 602768.

The previous prime is 1130191. The next prime is 1130237. The reversal of 1130205 is 5020311.

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 1130205 - 29 = 1129693 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 37659 + ... + 37688.

It is an arithmetic number, because the mean of its divisors is an integer number (226044).

21130205 is an apocalyptic number.

1130205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1130205 is a deficient number, since it is larger than the sum of its proper divisors (678147).

1130205 is an equidigital number, since it uses as much as digits as its factorization.

1130205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75355.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 1130205 is about 1063.1110007897. Note that the first 3 decimals coincide. The cubic root of 1130205 is about 104.1643419926.

Adding to 1130205 its reverse (5020311), we get a palindrome (6150516).

The spelling of 1130205 in words is "one million, one hundred thirty thousand, two hundred five".

Divisors: 1 3 5 15 75347 226041 376735 1130205