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71338071 = 3721493257
BaseRepresentation
bin1000100000010…
…00100001010111
311222020100102210
410100020201113
5121230304241
611025004503
71524235500
oct420104127
9158210383
1071338071
11372a5392
121ba83733
1311a1989c
14968dba7
1563e2316
hex4408857

71338071 has 24 divisors (see below), whose sum is σ = 111423600. Its totient is φ = 40478592.

The previous prime is 71338063. The next prime is 71338081. The reversal of 71338071 is 17083317.

It is not a de Polignac number, because 71338071 - 23 = 71338063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71338051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20275 + ... + 23531.

It is an arithmetic number, because the mean of its divisors is an integer number (4642650).

Almost surely, 271338071 is an apocalyptic number.

71338071 is a deficient number, since it is larger than the sum of its proper divisors (40085529).

71338071 is a wasteful number, since it uses less digits than its factorization.

71338071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423 (or 3416 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 71338071 is about 8446.1867727395. The cubic root of 71338071 is about 414.7379600913.

The spelling of 71338071 in words is "seventy-one million, three hundred thirty-eight thousand, seventy-one".

Divisors: 1 3 7 21 49 147 149 447 1043 3129 3257 7301 9771 21903 22799 68397 159593 478779 485293 1455879 3397051 10191153 23779357 71338071