Search a number
-
+
13000442 = 2713611171
BaseRepresentation
bin110001100101…
…111011111010
3220110111020212
4301211323322
511312003232
61142351122
7215334110
oct61457372
926414225
1013000442
11737a474
12442b4a2
132902490
141a25ab0
15121beb2
hexc65efa

13000442 has 32 divisors (see below), whose sum is σ = 24415104. Its totient is φ = 5054400.

The previous prime is 13000411. The next prime is 13000457. The reversal of 13000442 is 24400031.

It is a super-2 number, since 2×130004422 = 338022984390728, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10517 + ... + 11687.

It is an arithmetic number, because the mean of its divisors is an integer number (762972).

Almost surely, 213000442 is an apocalyptic number.

13000442 is a deficient number, since it is larger than the sum of its proper divisors (11414662).

13000442 is a wasteful number, since it uses less digits than its factorization.

13000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 13000442 is about 3605.6125693147. The cubic root of 13000442 is about 235.1361335879.

Adding to 13000442 its reverse (24400031), we get a palindrome (37400473).

The spelling of 13000442 in words is "thirteen million, four hundred forty-two", and thus it is an aban number.

Divisors: 1 2 7 13 14 26 61 91 122 182 427 793 854 1171 1586 2342 5551 8197 11102 15223 16394 30446 71431 106561 142862 213122 500017 928603 1000034 1857206 6500221 13000442