Search a number
-
+
13952154789 = 326125413761
BaseRepresentation
bin11001111111001110…
…01111110010100101
31100000100102220021200
430333213033302211
5212033222423124
610224243033113
71002514234056
oct147747176245
940010386250
1013952154789
115a0a69a441
12285466b799
1314147294c1
14964dc072d
15569d31bc9
hex33f9cfca5

13952154789 has 12 divisors (see below), whose sum is σ = 20483492172. Its totient is φ = 9148953600.

The previous prime is 13952154787. The next prime is 13952154793. The reversal of 13952154789 is 98745125931.

It is a happy number.

13952154789 is a `hidden beast` number, since 1 + 3 + 95 + 2 + 1 + 547 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1500942564 + 12451212225 = 38742^2 + 111585^2 .

It is not a de Polignac number, because 13952154789 - 21 = 13952154787 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13952154787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12706332 + ... + 12707429.

It is an arithmetic number, because the mean of its divisors is an integer number (1706957681).

Almost surely, 213952154789 is an apocalyptic number.

It is an amenable number.

13952154789 is a deficient number, since it is larger than the sum of its proper divisors (6531337383).

13952154789 is a wasteful number, since it uses less digits than its factorization.

13952154789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25413828 (or 25413825 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The spelling of 13952154789 in words is "thirteen billion, nine hundred fifty-two million, one hundred fifty-four thousand, seven hundred eighty-nine".

Divisors: 1 3 9 61 183 549 25413761 76241283 228723849 1550239421 4650718263 13952154789