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13250205 = 325523563
BaseRepresentation
bin110010100010…
…111010011101
3220221011212100
4302202322131
511343001310
61151555313
7220424223
oct62427235
926834770
1013250205
117530091
12452bb39
13298c077
141a8cb13
15126aec0
hexca2e9d

13250205 has 24 divisors (see below), whose sum is σ = 23051808. Its totient is φ = 7040736.

The previous prime is 13250197. The next prime is 13250213. The reversal of 13250205 is 50205231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13250197) and next prime (13250213).

It is not a de Polignac number, because 13250205 - 23 = 13250197 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 23 ways as a sum of consecutive naturals, for example, 23254 + ... + 23816.

It is an arithmetic number, because the mean of its divisors is an integer number (960492).

Almost surely, 213250205 is an apocalyptic number.

13250205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13250205 is a deficient number, since it is larger than the sum of its proper divisors (9801603).

13250205 is a wasteful number, since it uses less digits than its factorization.

13250205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 13250205 is about 3640.0831034470. The cubic root of 13250205 is about 236.6323949139.

Adding to 13250205 its reverse (50205231), we get a palindrome (63455436).

The spelling of 13250205 in words is "thirteen million, two hundred fifty thousand, two hundred five".

Divisors: 1 3 5 9 15 45 523 563 1569 1689 2615 2815 4707 5067 7845 8445 23535 25335 294449 883347 1472245 2650041 4416735 13250205