Search a number
-
+
14961813 = 34987271
BaseRepresentation
bin111001000100…
…110010010101
31001011010202020
4321010302111
512312234223
61252403353
7241113306
oct71046225
931133666
1014961813
11849a039
125016559
13313b159
141db67ad
1514a81e3
hexe44c95

14961813 has 4 divisors (see below), whose sum is σ = 19949088. Its totient is φ = 9974540.

The previous prime is 14961811. The next prime is 14961823. The reversal of 14961813 is 31816941.

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.

It is a cyclic number.

It is not a de Polignac number, because 14961813 - 21 = 14961811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14961811) by changing a digit.

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, 2493633 + ... + 2493638.

It is an arithmetic number, because the mean of its divisors is an integer number (4987272).

Almost surely, 214961813 is an apocalyptic number.

It is an amenable number.

14961813 is a deficient number, since it is larger than the sum of its proper divisors (4987275).

14961813 is an equidigital number, since it uses as much as digits as its factorization.

14961813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987274.

The product of its digits is 5184, while the sum is 33.

The square root of 14961813 is about 3868.0502840578. The cubic root of 14961813 is about 246.4117468275.

The spelling of 14961813 in words is "fourteen million, nine hundred sixty-one thousand, eight hundred thirteen".

Divisors: 1 3 4987271 14961813