Search a number
-
+
13148788 = 2214092333
BaseRepresentation
bin110010001010…
…001001110100
3220202000202011
4302022021310
511331230123
61145454004
7216522442
oct62121164
926660664
1013148788
117470974
1244a1304
132954b63
141a63b92
15124ae0d
hexc8a274

13148788 has 12 divisors (see below), whose sum is σ = 23036580. Its totient is φ = 6566912.

The previous prime is 13148783. The next prime is 13148789. The reversal of 13148788 is 88784131.

It can be written as a sum of positive squares in 2 ways, for example, as 1710864 + 11437924 = 1308^2 + 3382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13148788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13148783) 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, 4470 + ... + 6802.

It is an arithmetic number, because the mean of its divisors is an integer number (1919715).

Almost surely, 213148788 is an apocalyptic number.

It is an amenable number.

13148788 is a deficient number, since it is larger than the sum of its proper divisors (9887792).

13148788 is a wasteful number, since it uses less digits than its factorization.

13148788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746 (or 3744 counting only the distinct ones).

The product of its digits is 43008, while the sum is 40.

The square root of 13148788 is about 3626.1257562307. The cubic root of 13148788 is about 236.0271203153.

The spelling of 13148788 in words is "thirteen million, one hundred forty-eight thousand, seven hundred eighty-eight".

Divisors: 1 2 4 1409 2333 2818 4666 5636 9332 3287197 6574394 13148788