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13540107 = 37644767
BaseRepresentation
bin110011101001…
…101100001011
3221110220112110
4303221230023
511431240412
61202113403
7223042350
oct63515413
927426473
1013540107
117708979
12464b863
132a60cc9
141b26627
1512c6d3c
hexce9b0b

13540107 has 8 divisors (see below), whose sum is σ = 20632576. Its totient is φ = 7737192.

The previous prime is 13540091. The next prime is 13540117. The reversal of 13540107 is 70104531.

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

It is not a de Polignac number, because 13540107 - 24 = 13540091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 644767 = 13540107 / (1 + 3 + 5 + 4 + 0 + 1 + 0 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13540117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322363 + ... + 322404.

It is an arithmetic number, because the mean of its divisors is an integer number (2579072).

Almost surely, 213540107 is an apocalyptic number.

13540107 is a deficient number, since it is larger than the sum of its proper divisors (7092469).

13540107 is an equidigital number, since it uses as much as digits as its factorization.

13540107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644777.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 13540107 is about 3679.6884378980. The cubic root of 13540107 is about 238.3457242758.

Adding to 13540107 its reverse (70104531), we get a palindrome (83644638).

The spelling of 13540107 in words is "thirteen million, five hundred forty thousand, one hundred seven".

Divisors: 1 3 7 21 644767 1934301 4513369 13540107