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13302871 = 97137143
BaseRepresentation
bin110010101111…
…110001010111
3221000212002221
4302233301113
511401142441
61153043211
7221033611
oct62576127
927025087
1013302871
11756670a
124556507
1329aa02a
141aa3db1
15127b8d1
hexcafc57

13302871 has 4 divisors (see below), whose sum is σ = 13440112. Its totient is φ = 13165632.

The previous prime is 13302853. The next prime is 13302899. The reversal of 13302871 is 17820331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17820331 = 23774797.

It is a cyclic number.

It is not a de Polignac number, because 13302871 - 217 = 13171799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13392871) 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, 68475 + ... + 68668.

It is an arithmetic number, because the mean of its divisors is an integer number (3360028).

Almost surely, 213302871 is an apocalyptic number.

13302871 is a deficient number, since it is larger than the sum of its proper divisors (137241).

13302871 is an equidigital number, since it uses as much as digits as its factorization.

13302871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137240.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 13302871 is about 3647.3101047210. The cubic root of 13302871 is about 236.9454971490.

The spelling of 13302871 in words is "thirteen million, three hundred two thousand, eight hundred seventy-one".

Divisors: 1 97 137143 13302871