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71471053 is a prime number
BaseRepresentation
bin1000100001010…
…00111111001101
311222111002212001
410100220333031
5121244033203
611031512301
71525331263
oct420507715
9158432761
1071471053
1137386295
121bb28691
1311a65284
1496c6433
15641b91d
hex4428fcd

71471053 has 2 divisors, whose sum is σ = 71471054. Its totient is φ = 71471052.

The previous prime is 71471041. The next prime is 71471069. The reversal of 71471053 is 35017417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38775529 + 32695524 = 6227^2 + 5718^2 .

It is a cyclic number.

It is not a de Polignac number, because 71471053 - 221 = 69373901 is a prime.

It is a super-2 number, since 2×714710532 = 10216222833857618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71471033) 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 as a sum of consecutive naturals, namely, 35735526 + 35735527.

It is an arithmetic number, because the mean of its divisors is an integer number (35735527).

Almost surely, 271471053 is an apocalyptic number.

It is an amenable number.

71471053 is a deficient number, since it is larger than the sum of its proper divisors (1).

71471053 is an equidigital number, since it uses as much as digits as its factorization.

71471053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 71471053 is about 8454.0554173722. The cubic root of 71471053 is about 414.9955058303.

The spelling of 71471053 in words is "seventy-one million, four hundred seventy-one thousand, fifty-three".