Search a number
-
+
13331140 = 225666557
BaseRepresentation
bin110010110110…
…101011000100
3221002021212221
4302312223010
511403044030
61153422124
7221212204
oct62665304
927067787
1013331140
117585979
12456a944
1329b9b64
141ab0404
151284e7a
hexcb6ac4

13331140 has 12 divisors (see below), whose sum is σ = 27995436. Its totient is φ = 5332448.

The previous prime is 13331119. The next prime is 13331167. The reversal of 13331140 is 4113331.

13331140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9339136 + 3992004 = 3056^2 + 1998^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333259 + ... + 333298.

It is an arithmetic number, because the mean of its divisors is an integer number (2332953).

Almost surely, 213331140 is an apocalyptic number.

13331140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13331140 is an abundant number, since it is smaller than the sum of its proper divisors (14664296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13331140 is a wasteful number, since it uses less digits than its factorization.

13331140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666566 (or 666564 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 13331140 is about 3651.1833698131. The cubic root of 13331140 is about 237.1132171652.

Adding to 13331140 its reverse (4113331), we get a palindrome (17444471).

The spelling of 13331140 in words is "thirteen million, three hundred thirty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 666557 1333114 2666228 3332785 6665570 13331140