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71227107 = 347125621
BaseRepresentation
bin1000011111011…
…01011011100011
311222000201020000
410033231123203
5121213231412
611022351043
71523264130
oct417553343
9158021200
1071227107
1137229a86
121ba2b483
13119ab223
149661587
1563be4dc
hex43ed6e3

71227107 has 20 divisors (see below), whose sum is σ = 121602096. Its totient is φ = 40700880.

The previous prime is 71227073. The next prime is 71227139. The reversal of 71227107 is 70172217.

It is not a de Polignac number, because 71227107 - 27 = 71226979 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (71227207) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62244 + ... + 63377.

Almost surely, 271227107 is an apocalyptic number.

71227107 is a deficient number, since it is larger than the sum of its proper divisors (50374989).

71227107 is a wasteful number, since it uses less digits than its factorization.

71227107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125640 (or 125631 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 71227107 is about 8439.6153348361. The cubic root of 71227107 is about 414.5228114600.

The spelling of 71227107 in words is "seventy-one million, two hundred twenty-seven thousand, one hundred seven".

Divisors: 1 3 7 9 21 27 63 81 189 567 125621 376863 879347 1130589 2638041 3391767 7914123 10175301 23742369 71227107