Search a number
-
+
13206904 = 237920897
BaseRepresentation
bin110010011000…
…010101111000
3220211222110121
4302120111320
511340110104
61151023024
7220154044
oct62302570
926758417
1013206904
1175005a7
12450aa74
132975449
141a7b024
15125d254
hexc98578

13206904 has 16 divisors (see below), whose sum is σ = 25077600. Its totient is φ = 6519552.

The previous prime is 13206889. The next prime is 13206917. The reversal of 13206904 is 40960231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9817 + ... + 11080.

It is an arithmetic number, because the mean of its divisors is an integer number (1567350).

Almost surely, 213206904 is an apocalyptic number.

It is an amenable number.

13206904 is a deficient number, since it is larger than the sum of its proper divisors (11870696).

13206904 is a wasteful number, since it uses less digits than its factorization.

13206904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20982 (or 20978 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13206904 is about 3634.1304324419. The cubic root of 13206904 is about 236.3743460451.

The spelling of 13206904 in words is "thirteen million, two hundred six thousand, nine hundred four".

Divisors: 1 2 4 8 79 158 316 632 20897 41794 83588 167176 1650863 3301726 6603452 13206904