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13001230 = 2511181653
BaseRepresentation
bin110001100110…
…001000001110
3220110112100001
4301212020032
511312014410
61142354514
7215336314
oct61461016
926415301
1013001230
117380020
12442ba3a
132902948
141a260b4
15121c33a
hexc6620e

13001230 has 32 divisors (see below), whose sum is σ = 25710048. Its totient is φ = 4694400.

The previous prime is 13001213. The next prime is 13001237. The reversal of 13001230 is 3210031.

It is a Harshad number since it is a multiple of its sum of digits (10).

13001230 is a modest number, since divided by 1230 gives 130 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19584 + ... + 20236.

It is an arithmetic number, because the mean of its divisors is an integer number (803439).

Almost surely, 213001230 is an apocalyptic number.

13001230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13001230 is a deficient number, since it is larger than the sum of its proper divisors (12708818).

13001230 is a wasteful number, since it uses less digits than its factorization.

13001230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 13001230 is about 3605.7218417399. The cubic root of 13001230 is about 235.1408842861.

Adding to 13001230 its reverse (3210031), we get a palindrome (16211261).

It can be divided in two parts, 13001 and 230, that added together give a palindrome (13231).

The spelling of 13001230 in words is "thirteen million, one thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 181 362 653 905 1306 1810 1991 3265 3982 6530 7183 9955 14366 19910 35915 71830 118193 236386 590965 1181930 1300123 2600246 6500615 13001230