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13240111 = 23619437
BaseRepresentation
bin110010100000…
…011100101111
3220220200000111
4302200130233
511342140421
61151440451
7220352623
oct62403457
926820014
1013240111
117523545
124526127
1329875b1
141a89183
151267ee1
hexca072f

13240111 has 8 divisors (see below), whose sum is σ = 14043744. Its totient is φ = 12455520.

The previous prime is 13240109. The next prime is 13240141. The reversal of 13240111 is 11104231.

13240111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13240111 - 21 = 13240109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13240091 and 13240100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3316 + ... + 6121.

It is an arithmetic number, because the mean of its divisors is an integer number (1755468).

Almost surely, 213240111 is an apocalyptic number.

13240111 is a deficient number, since it is larger than the sum of its proper divisors (803633).

13240111 is an equidigital number, since it uses as much as digits as its factorization.

13240111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9521.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 13240111 is about 3638.6963324795. The cubic root of 13240111 is about 236.5722908328.

Adding to 13240111 its reverse (11104231), we get a palindrome (24344342).

The spelling of 13240111 in words is "thirteen million, two hundred forty thousand, one hundred eleven".

Divisors: 1 23 61 1403 9437 217051 575657 13240111