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71396053 = 192197773
BaseRepresentation
bin1000100000101…
…10101011010101
311222100021222021
410100112223111
5121234133203
611030133141
71524566521
oct420265325
9158307867
1071396053
1137334a03
121bab11b1
1311a3a0b1
1496a6d81
1564045bd
hex4416ad5

71396053 has 6 divisors (see below), whose sum is σ = 75351894. Its totient is φ = 67638024.

The previous prime is 71396041. The next prime is 71396113. The reversal of 71396053 is 35069317.

It can be written as a sum of positive squares in only one way, i.e., 69255684 + 2140369 = 8322^2 + 1463^2 .

It is not a de Polignac number, because 71396053 - 217 = 71264981 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 (71396023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98526 + ... + 99247.

It is an arithmetic number, because the mean of its divisors is an integer number (12558649).

Almost surely, 271396053 is an apocalyptic number.

It is an amenable number.

71396053 is a deficient number, since it is larger than the sum of its proper divisors (3955841).

71396053 is a wasteful number, since it uses less digits than its factorization.

71396053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197811 (or 197792 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 71396053 is about 8449.6185120986. The cubic root of 71396053 is about 414.8502929311.

The spelling of 71396053 in words is "seventy-one million, three hundred ninety-six thousand, fifty-three".

Divisors: 1 19 361 197773 3757687 71396053