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13133271 = 34377757
BaseRepresentation
bin110010000110…
…010111010111
3220201020110110
4302012113113
511330231041
61145254103
7216426264
oct62062727
926636413
1013133271
117460248
124494333
13294aa88
141a5c26b
151246516
hexc865d7

13133271 has 4 divisors (see below), whose sum is σ = 17511032. Its totient is φ = 8755512.

The previous prime is 13133269. The next prime is 13133279. The reversal of 13133271 is 17233131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17233131 = 35744377.

It is not a de Polignac number, because 13133271 - 21 = 13133269 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 (13133279) 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 3 ways as a sum of consecutive naturals, for example, 2188876 + ... + 2188881.

It is an arithmetic number, because the mean of its divisors is an integer number (4377758).

Almost surely, 213133271 is an apocalyptic number.

13133271 is a deficient number, since it is larger than the sum of its proper divisors (4377761).

13133271 is an equidigital number, since it uses as much as digits as its factorization.

13133271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377760.

The product of its digits is 378, while the sum is 21.

The square root of 13133271 is about 3623.9855132161. The cubic root of 13133271 is about 235.9342378772.

The spelling of 13133271 in words is "thirteen million, one hundred thirty-three thousand, two hundred seventy-one".

Divisors: 1 3 4377757 13133271