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71713227 = 323904409
BaseRepresentation
bin1000100011001…
…00000111001011
311222221102001110
410101210013023
5121324310402
611041021403
71530360315
oct421440713
9158842043
1071713227
1137531233
1220024863
1311b1b581
14974a7b5
15646856c
hex44641cb

71713227 has 4 divisors (see below), whose sum is σ = 95617640. Its totient is φ = 47808816.

The previous prime is 71713189. The next prime is 71713231. The reversal of 71713227 is 72231717.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72231717 = 324077239.

It is not a de Polignac number, because 71713227 - 210 = 71712203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71713194 and 71713203.

It is not an unprimeable number, because it can be changed into a prime (71713427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11952202 + ... + 11952207.

It is an arithmetic number, because the mean of its divisors is an integer number (23904410).

Almost surely, 271713227 is an apocalyptic number.

71713227 is a deficient number, since it is larger than the sum of its proper divisors (23904413).

71713227 is a wasteful number, since it uses less digits than its factorization.

71713227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23904412.

The product of its digits is 4116, while the sum is 30.

The square root of 71713227 is about 8468.3662532982. The cubic root of 71713227 is about 415.4637038734.

The spelling of 71713227 in words is "seventy-one million, seven hundred thirteen thousand, two hundred twenty-seven".

Divisors: 1 3 23904409 71713227