Search a number
-
+
13001404 = 2213250027
BaseRepresentation
bin110001100110…
…001010111100
3220110112120111
4301212022330
511312021104
61142355404
7215336653
oct61461274
926415514
1013001404
117380169
12442bb64
132902a50
141a2619a
15121c404
hexc662bc

13001404 has 12 divisors (see below), whose sum is σ = 24502744. Its totient is φ = 6000624.

The previous prime is 13001389. The next prime is 13001407. The reversal of 13001404 is 40410031.

13001404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124962 + ... + 125065.

Almost surely, 213001404 is an apocalyptic number.

It is an amenable number.

13001404 is a deficient number, since it is larger than the sum of its proper divisors (11501340).

13001404 is a wasteful number, since it uses less digits than its factorization.

13001404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250044 (or 250042 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 13001404 is about 3605.7459699763. The cubic root of 13001404 is about 235.1419332722.

Adding to 13001404 its reverse (40410031), we get a palindrome (53411435).

It can be divided in two parts, 1300 and 1404, that added together give a square (2704 = 522).

The spelling of 13001404 in words is "thirteen million, one thousand, four hundred four".

Divisors: 1 2 4 13 26 52 250027 500054 1000108 3250351 6500702 13001404