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13005230 = 257185789
BaseRepresentation
bin110001100111…
…000110101110
3220110201211012
4301213012232
511312131410
61142425222
7215354060
oct61470656
926421735
1013005230
117383027
124432212
132904704
141a27730
15121d605
hexc671ae

13005230 has 16 divisors (see below), whose sum is σ = 26753760. Its totient is φ = 4458912.

The previous prime is 13005227. The next prime is 13005233. The reversal of 13005230 is 3250031.

It is an interprime number because it is at equal distance from previous prime (13005227) and next prime (13005233).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13005233) by changing a digit.

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, 92825 + ... + 92964.

It is an arithmetic number, because the mean of its divisors is an integer number (1672110).

Almost surely, 213005230 is an apocalyptic number.

13005230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13005230 is an abundant number, since it is smaller than the sum of its proper divisors (13748530).

13005230 is a wasteful number, since it uses less digits than its factorization.

13005230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185803.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 13005230 is about 3606.2764730397. The cubic root of 13005230 is about 235.1649965456.

Adding to 13005230 its reverse (3250031), we get a palindrome (16255261).

The spelling of 13005230 in words is "thirteen million, five thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 185789 371578 928945 1300523 1857890 2601046 6502615 13005230