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13140131 = 41536047
BaseRepresentation
bin110010001000…
…000010100011
3220201120212112
4302020002203
511330441011
61145345535
7216455264
oct62100243
926646775
1013140131
117465414
1244982ab
132950c34
141a6096b
15124858b
hexc880a3

13140131 has 8 divisors (see below), whose sum is σ = 13716864. Its totient is φ = 12575680.

The previous prime is 13140109. The next prime is 13140137. The reversal of 13140131 is 13104131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13140131 is a prime.

It is a super-2 number, since 2×131401312 = 345326085394322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13140137) 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, 851 + ... + 5196.

It is an arithmetic number, because the mean of its divisors is an integer number (1714608).

Almost surely, 213140131 is an apocalyptic number.

13140131 is a deficient number, since it is larger than the sum of its proper divisors (576733).

13140131 is an equidigital number, since it uses as much as digits as its factorization.

13140131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6141.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 13140131 is about 3624.9318614286. The cubic root of 13140131 is about 235.9753098272.

Adding to 13140131 its reverse (13104131), we get a palindrome (26244262).

The spelling of 13140131 in words is "thirteen million, one hundred forty thousand, one hundred thirty-one".

Divisors: 1 41 53 2173 6047 247927 320491 13140131