Search a number
-
+
13144795784 = 231679838919
BaseRepresentation
bin11000011110111110…
…11010101010001000
31020221002020210221022
430033133122222020
5203410031431114
610012202332012
7643511630531
oct141737325210
936832223838
1013144795784
11563599269a
12266a1ba008
13131639ab93
148c9a9b688
1551e00448e
hex30f7daa88

13144795784 has 16 divisors (see below), whose sum is σ = 24794078400. Its totient is φ = 6533041552.

The previous prime is 13144795747. The next prime is 13144795789. The reversal of 13144795784 is 48759744131.

It is not an unprimeable number, because it can be changed into a prime (13144795789) 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, 4918124 + ... + 4920795.

It is an arithmetic number, because the mean of its divisors is an integer number (1549629900).

Almost surely, 213144795784 is an apocalyptic number.

It is an amenable number.

13144795784 is a deficient number, since it is larger than the sum of its proper divisors (11649282616).

13144795784 is a wasteful number, since it uses less digits than its factorization.

13144795784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9839092 (or 9839088 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The spelling of 13144795784 in words is "thirteen billion, one hundred forty-four million, seven hundred ninety-five thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 167 334 668 1336 9838919 19677838 39355676 78711352 1643099473 3286198946 6572397892 13144795784