Search a number
-
+
13236949 = 111203359
BaseRepresentation
bin110010011111…
…101011010101
3220220111200101
4302133223111
511342040244
61151414101
7220340455
oct62375325
926814611
1013236949
117521130
124524331
13298601b
141a87d65
1512670d4
hexc9fad5

13236949 has 4 divisors (see below), whose sum is σ = 14440320. Its totient is φ = 12033580.

The previous prime is 13236947. The next prime is 13236953. The reversal of 13236949 is 94963231.

13236949 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94963231 = 118633021.

It is a cyclic number.

It is not a de Polignac number, because 13236949 - 21 = 13236947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13236941) 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, 601669 + ... + 601690.

It is an arithmetic number, because the mean of its divisors is an integer number (3610080).

Almost surely, 213236949 is an apocalyptic number.

It is an amenable number.

13236949 is a deficient number, since it is larger than the sum of its proper divisors (1203371).

13236949 is a wasteful number, since it uses less digits than its factorization.

13236949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203370.

The product of its digits is 34992, while the sum is 37.

The square root of 13236949 is about 3638.2618102605. The cubic root of 13236949 is about 236.5534566216.

The spelling of 13236949 in words is "thirteen million, two hundred thirty-six thousand, nine hundred forty-nine".

Divisors: 1 11 1203359 13236949